WO2010030172A1 - Method and system for extinguishing a fire, as well as bags, inflating eguipment and a vehicle as part of the system - Google Patents
Method and system for extinguishing a fire, as well as bags, inflating eguipment and a vehicle as part of the system Download PDFInfo
- Publication number
- WO2010030172A1 WO2010030172A1 PCT/NL2009/000174 NL2009000174W WO2010030172A1 WO 2010030172 A1 WO2010030172 A1 WO 2010030172A1 NL 2009000174 W NL2009000174 W NL 2009000174W WO 2010030172 A1 WO2010030172 A1 WO 2010030172A1
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- WO
- WIPO (PCT)
- Prior art keywords
- bags
- characteristic
- room
- vehicle
- inflated
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
Definitions
- the invention relates to a working method for extinguishing a fire in a room, where initially accesses to the room will be blocked, to prevent that fresh air will flow into the room. Usually the fire is then put out by such a system of a sprinkler system or nebulisers.
- a sprinkler system or nebulisers One objection to the implementation of this classic fire fighting equipment is that they inevitably cause water damage. The cost of the water damage often exceeds the costs of the damage caused by the fire.
- the method according to the invention is to address this concern and has the characteristic, that subsequently at least almost airtight bags will be inflated in the room.
- the bags displace the air in the room, allowing the fire to stifle quickly because the available oxygen is quickly consumed.
- the inflated bags prevent the start up of an air circulation in the room, thus reducing the oxygen-rich airflow towards the fire.
- a favourable realisation of the inventive method has the characteristic, that the bags have been manufactured from an at least virtually fireproof and substantially non-combustible material.
- a further positive realisation has the feature that the bags are inflated with a non-combustible gas that contains almost no oxygen, so the bags or the gas contained therein can hardly contribute to the fire
- a favourable alternative realisation is characterized by the feature that the bags are inflated with air that is present in the room.
- the advantage is that during the inflation of the bags no gasses are driven out of the room, so that in case of the release of harmful gases and soot particles, these will not leave the room.
- a further very advantageous realisation of the inventive method has the feature that accesses of the room are blocked, using at least almost airtight additional bags which can be inflated so that a full and effective fire fighting can be achieved only by using inflatable bags.
- a further positive realisation has the feature that the room includes a tunnel segment, in which a vehicle is driven into and hereafter additional bags are inflated around the vehicle.
- the tunnel segment can be closed in a very short time, preventing the development of a strong draft that could increase the fire.
- the invention also relates to a system for extinguishing a fire in a room with accesses, including means of closing for blocking accesses.
- the system according to the invention is to address this concern and has the characteristic that the system also includes inflatable bags, which can be arranged in an extended order in the room with additional means of inflation for inflating the bags
- a favourable implementation of the inventive system has the feature that the means of closing include additional bags which are placed near accesses as well as additional means of inflation for inflating the additional bags.
- a further favourable implementation of the inventive system has the feature that the bags are manufactured from at least substantially almost non-combustible materials.
- a further favourable implementation of the inventive system has the feature that the means of inflation include at least one container with a compressed gas with the characteristic that the compressed gas is non- combustible and virtually contains no oxygen, so it can not contribute to the fire.
- the compressed gas can be stored in a central container, to which all bags and additional bags are connected, but it is also possible to connect every bag and additional bag with a separate container or to connect groups of bags and separate bags with separate containers.
- a further favourable alternative implementation of the inventive system has the characteristic, that the means of inflation includes means for gas displacement for filling the bags with air present the room.
- the means of inflation includes means for gas displacement for filling the bags with air present the room.
- the system also includes a vehicle that is provided with additional inflatable bags attached to the outside of the vehicle.
- the vehicle may be driven close to the fire in the tunnel, then the additional bags are inflated.
- the vehicle is preferably equipped with large doors at the front and back sides, so that individuals and preferably also other vehicles can be channelled through the vehicle without a draft can arise.
- a further very favourable implementation has the feature that the vehicle is also equipped with a throwing device designed for releasing, throwing or shooting inflatable bags in the tunnel. When inflated, the bags displace the air in the room, allowing the fire to stifle quickly because the available oxygen is consumed faster. Moreover, the inflated bags will prevent the start up of an air circulation in the tunnel, thus reducing the oxygen-rich airflow to the fire.
- the invention also relates to bags and means of inflation as part of a system as described in the preceding paragraphs.
- the invention also relates to a vehicle as part of a system as described in the preceding paragraphs.
- Fig. 1A shows one sidewall of a room, where a doorway has an inflatable bag
- Fig. 1 B shows the same sidewall of the room with an inflated bag
- Fig. 2 a room with a fire extinguishing system according to the
- FIG. 3A shows a possible implementation of position for an inflatable bag
- Fig. 3B Shows an alternative implementation of an inflatable bag position
- FIG. 4A front view of a vehicle according to the invention in a tunnel
- Fig. 4B This vehicle with an opened front door (front view);
- Fig. 5 side view of that vehicle.
- Fig. 1A shows a side wall 1 of a room, in which a doorway 2 is presented with an inflatable bag 3 that is folded, so that it takes virtually no space. Bag 3 can be connected to a further not shown gas tank, containing compressed nitrogen, by which the bag 3 can be inflated.
- Fig. 1 B shows sidewall 1 again with an inflated bag 3, which completely covers doorway 2, so that nearly no air can penetrate the room through the doorway, while it remains possible for persons to leave the room.
- Fig. 2 shows in top view a room 4 with a fire extinguishing system according to the invention.
- Room 4 is equipped with two door openings
- SUBSmUTE SHEET (RULE 26) 2a, 2b, with inflatable bags 3a, 3b. Bag 3a is not yet inflated, while bag 3b is inflated and completely covers doorway 2b. Room 4 is provided with furniture, e.g. tables 5 and closets 6.
- a number of inflatable bags 8 are attached, which in case of fire can be connected to a reservoir 9 containing compressed nitrogen gas, so they can be inflated. Their only function is to take up volume so the amount of available air in room 4 decreases. Due to these inflated bags a fire in room 4 will stifle faster. Inflatable bags
- Bags 8,10 are made of a fireproof material such as polyurethane, so they are flame resistant for a certain period of time. If unexpectedly an inflated bag breaks down, the local fire may flare up here, but the choking process is hardly disturbed. Bags 8, 10 have for example an inflated capacity of 0 0.5 m 3 , so for example a few hundred bags are sufficient to fill an office space for fire protection.
- FIG. 3A shows one possible implementation of an inflatable bag 10 again.
- a small container 11 is connected through a valve 13 to bag 10.
- a pen 14 is released from valve 13 by a rope 15, where after bag 10 inflates.
- Container 11 is for example filled with nitrogen in such a pressure of 250 bar and has a capacity of 2 litre.
- Fig. 3B shows an alternative implementation of an inflatable bag again,
- SUBST.TOTE SHEET (R ⁇ 26) with a small fan 12 connected via a switch 16 to bag 10.
- a switch 16 For example, if a fire alarm commands a bag 10 to fall from the ceiling, a pen 14 is released with a rope 15 from switch 16, then bag 10 inflates. Fan 12 is powered by small batteries 17 that have a sufficient capacity to inflate bag 10. To prevent that bag 10 is drained, bag 10 is provided with a known check valve 18.
- Fig. 4A shows a vehicle 19 according to the invention in tunnel 20 in front view.
- Vehicle 19 is equipped with wheels and is constructed in such a way that there is little space between the bottom of the vehicle 19 and the road surface of tunnel 20.
- vehicle 19 is driven close to the fire in the tunnel 20.
- a composite bag 21a, 21b, 21c, 21 d, 21 e is inflated, allowing existing air flow in tunnel 20 to stop.
- the front and rear of the vehicle 19 is equipped with or doors 22a, 22b here executed as blinds, each with an motor 23 that can be operated. It is possible to open the door 22a to let people and vehicles enter into vehicle 19. Then door 22a is closed and door 22b opens, and people and vehicles can leave the tunnel.
- the front of the vehicle is provided with a window 24a to be used by the driver of vehicle 19 and a window 24b which can be used by a shot when operating a throwing device 25 throwing inflatable bags 10 in tunnel 20 to reduce the (for the fire available) air volume in tunnel 20.
- Fig. 4B shows vehicle 19 in front with inflated bags 21a, 21b, 21c, 21d, 21e and an open front door 22a.
- Fig. 5 shows vehicle 19 in side view, with front door 22a, back door 22b, throwing device 25 which is for example implemented as a compressed nitrogen gun and composed bag of bags 21a, 21b, 21c, 21d, 21e in a not yet-inflated situation.
- throwing device 25 which is for example implemented as a compressed nitrogen gun and composed bag of bags 21a, 21b, 21c, 21d, 21e in a not yet-inflated situation.
Abstract
The invention relates to a method for extinguishing a fire in one room, whereby accesses to the area are to be closed and subsequently in the area at least substantially airtight bags are to be inflated to narrow the room and to decrease the capacity of the amount of air. The method is very suitable to be used at tunnel fires.
Description
Method and system for extinguishing a fire, as well as bags, inflating eguipment and a vehicle as part of the system.
The invention relates to a working method for extinguishing a fire in a room, where initially accesses to the room will be blocked, to prevent that fresh air will flow into the room. Usually the fire is then put out by such a system of a sprinkler system or nebulisers. One objection to the implementation of this classic fire fighting equipment is that they inevitably cause water damage. The cost of the water damage often exceeds the costs of the damage caused by the fire.
The method according to the invention is to address this concern and has the characteristic, that subsequently at least almost airtight bags will be inflated in the room. The bags displace the air in the room, allowing the fire to stifle quickly because the available oxygen is quickly consumed. Moreover, the inflated bags prevent the start up of an air circulation in the room, thus reducing the oxygen-rich airflow towards the fire.
A favourable realisation of the inventive method has the characteristic, that the bags have been manufactured from an at least virtually fireproof and substantially non-combustible material.
A further positive realisation has the feature that the bags are inflated with a non-combustible gas that contains almost no oxygen, so the bags or the gas contained therein can hardly contribute to the fire
A favourable alternative realisation is characterized by the feature that the bags are inflated with air that is present in the room. The advantage is that during the inflation of the bags no gasses are driven out of the room,
so that in case of the release of harmful gases and soot particles, these will not leave the room.
A further very advantageous realisation of the inventive method has the feature that accesses of the room are blocked, using at least almost airtight additional bags which can be inflated so that a full and effective fire fighting can be achieved only by using inflatable bags.
A further positive realisation has the feature that the room includes a tunnel segment, in which a vehicle is driven into and hereafter additional bags are inflated around the vehicle. In this way, the tunnel segment can be closed in a very short time, preventing the development of a strong draft that could increase the fire.
In the case that fire is originated in a tunnel, all tunnel accesses can be blocked by vehicles as mentioned earlier and so forming an enclosed room between the vehicles and the tunnel walls. A further positive realisation has the feature that from the vehicle inflatable bags are released or shot in the tunnel segment. Thereupon these bags will be inflated, allowing the fire to stifle quickly due to the fact that the amount of available oxygen is reduced and therefore faster consumed and that the inflated bags prevent the start up of an air circulation in the tunnel segment, thus reducing the oxygen-rich airflow towards the fire.
The invention also relates to a system for extinguishing a fire in a room with accesses, including means of closing for blocking accesses.
By closing down the accesses, the flow of air from outside is prevented and in particular avoid a strong airflow that could increase the fire activity. It is common use to extinguish the fire then with traditional extinguishing
agents, such as a sprinkler system or water nebulisers. One objection to the implementation of this classic fighting equipment is that they inevitably cause water damage, water damage that often exceeds the fire damage by far. The system according to the invention is to address this concern and has the characteristic that the system also includes inflatable bags, which can be arranged in an extended order in the room with additional means of inflation for inflating the bags
By inflating the bags the amount of available oxygen in the room becomes smaller and also the inflated bags prevent the start up of air circulation in the room, allowing that less oxygen will be conducted to the fire.
A favourable implementation of the inventive system has the feature that the means of closing include additional bags which are placed near accesses as well as additional means of inflation for inflating the additional bags.
A further favourable implementation of the inventive system has the feature that the bags are manufactured from at least substantially almost non-combustible materials.
A further favourable implementation of the inventive system has the feature that the means of inflation include at least one container with a compressed gas with the characteristic that the compressed gas is non- combustible and virtually contains no oxygen, so it can not contribute to the fire.
The compressed gas can be stored in a central container, to which all bags and additional bags are connected, but it is also possible to connect every bag and additional bag with a separate container or to connect
groups of bags and separate bags with separate containers.
A further favourable alternative implementation of the inventive system has the characteristic, that the means of inflation includes means for gas displacement for filling the bags with air present the room. The advantage of this feature is that during the inflation of the bags no air pressure build up will occur in the room, so that if any harmful gases and soot particles are released from the fire they will not leave the room.
A further favourable implementation that is specially equipped for fighting tunnel fires with the characteristic, that the system also includes a vehicle that is provided with additional inflatable bags attached to the outside of the vehicle. The vehicle may be driven close to the fire in the tunnel, then the additional bags are inflated. The vehicle is preferably equipped with large doors at the front and back sides, so that individuals and preferably also other vehicles can be channelled through the vehicle without a draft can arise.
A further very favourable implementation has the feature that the vehicle is also equipped with a throwing device designed for releasing, throwing or shooting inflatable bags in the tunnel. When inflated, the bags displace the air in the room, allowing the fire to stifle quickly because the available oxygen is consumed faster. Moreover, the inflated bags will prevent the start up of an air circulation in the tunnel, thus reducing the oxygen-rich airflow to the fire.
The invention also relates to bags and means of inflation as part of a system as described in the preceding paragraphs.
The invention also relates to a vehicle as part of a system as described in the preceding paragraphs.
The invention will now be described on the basis of the following figures, where:
Fig. 1A shows one sidewall of a room, where a doorway has an inflatable bag;
Fig. 1 B shows the same sidewall of the room with an inflated bag; Fig. 2 a room with a fire extinguishing system according to the
Invention shown in top view position; Fig. 3A shows a possible implementation of position for an inflatable bag;
Fig. 3B Shows an alternative implementation of an inflatable bag position;
Fig. 4A front view of a vehicle according to the invention in a tunnel;
Fig. 4B This vehicle with an opened front door (front view);
Fig. 5 side view of that vehicle.
Fig. 1A shows a side wall 1 of a room, in which a doorway 2 is presented with an inflatable bag 3 that is folded, so that it takes virtually no space. Bag 3 can be connected to a further not shown gas tank, containing compressed nitrogen, by which the bag 3 can be inflated.
Fig. 1 B shows sidewall 1 again with an inflated bag 3, which completely covers doorway 2, so that nearly no air can penetrate the room through the doorway, while it remains possible for persons to leave the room.
Fig. 2 shows in top view a room 4 with a fire extinguishing system according to the invention. Room 4 is equipped with two door openings
SUBSmUTE SHEET (RULE 26)
2a, 2b, with inflatable bags 3a, 3b. Bag 3a is not yet inflated, while bag 3b is inflated and completely covers doorway 2b. Room 4 is provided with furniture, e.g. tables 5 and closets 6.
5 In or on a wall 7 a number of inflatable bags 8 are attached, which in case of fire can be connected to a reservoir 9 containing compressed nitrogen gas, so they can be inflated. Their only function is to take up volume so the amount of available air in room 4 decreases. Due to these inflated bags a fire in room 4 will stifle faster. Inflatable bags
10 10 are attached to or in the ceiling, provided with a small container 11 or with a pump 12 with which air from room 4 is pumped in bag 10. Again, reducing the amount of available air in room 4 will stifle the fire quickly. During inflation the bags 10 will be released from the ceiling, allowing that room 4 will be almost completely filled with inflated bags 10 in a short 5 time.
Bags 8,10 are made of a fireproof material such as polyurethane, so they are flame resistant for a certain period of time. If unexpectedly an inflated bag breaks down, the local fire may flare up here, but the choking process is hardly disturbed. Bags 8, 10 have for example an inflated capacity of 0 0.5 m3, so for example a few hundred bags are sufficient to fill an office space for fire protection.
Fig. 3A shows one possible implementation of an inflatable bag 10 again. A small container 11 is connected through a valve 13 to bag 10. For 5 example, if a fire alarm commands bag 10 to fall from the ceiling, a pen 14 is released from valve 13 by a rope 15, where after bag 10 inflates. Container 11 is for example filled with nitrogen in such a pressure of 250 bar and has a capacity of 2 litre. 0 Fig. 3B shows an alternative implementation of an inflatable bag again,
SUBST.TOTE SHEET (R^ 26)
with a small fan 12 connected via a switch 16 to bag 10. For example, if a fire alarm commands a bag 10 to fall from the ceiling, a pen 14 is released with a rope 15 from switch 16, then bag 10 inflates. Fan 12 is powered by small batteries 17 that have a sufficient capacity to inflate bag 10. To prevent that bag 10 is drained, bag 10 is provided with a known check valve 18.
Fig. 4A shows a vehicle 19 according to the invention in tunnel 20 in front view. Vehicle 19 is equipped with wheels and is constructed in such a way that there is little space between the bottom of the vehicle 19 and the road surface of tunnel 20. When fire in a tunnel 20 develops, vehicle 19 is driven close to the fire in the tunnel 20. Then a composite bag 21a, 21b, 21c, 21 d, 21 e is inflated, allowing existing air flow in tunnel 20 to stop.
The front and rear of the vehicle 19 is equipped with or doors 22a, 22b here executed as blinds, each with an motor 23 that can be operated. It is possible to open the door 22a to let people and vehicles enter into vehicle 19. Then door 22a is closed and door 22b opens, and people and vehicles can leave the tunnel.
Furthermore, the front of the vehicle is provided with a window 24a to be used by the driver of vehicle 19 and a window 24b which can be used by a shot when operating a throwing device 25 throwing inflatable bags 10 in tunnel 20 to reduce the (for the fire available) air volume in tunnel 20. Fig. 4B shows vehicle 19 in front with inflated bags 21a, 21b, 21c, 21d, 21e and an open front door 22a.
Fig. 5 shows vehicle 19 in side view, with front door 22a, back door 22b, throwing device 25 which is for example implemented as a compressed nitrogen gun and composed bag of bags 21a, 21b, 21c, 21d, 21e in a not yet-inflated situation.
Claims
1. Working method for extinguishing a fire in a room, where accesses of the room will be closed, with the characteristic, that subseguently at least almost airtight bags will be inflated in the room.
2. Working method according to claim 1 , with the characteristic, that the bags have been manufactured from an at least virtually fireproof and substantially non-combustible material.
3. Working method according to claim 2, with the characteristic, that the bags are inflated with a non-combustible gas that contains almost no oxygen.
4. Working method according to claim 2, with the characteristic, that the bags are inflated with air that is present in the room.
5. Working method according to one of the previous claims, with the characteristic, that accesses of the room are blocked, using at least almost airtight additional bags which can be inflated.
6. Working method according to one of the previous claims, with the characteristic, that the room includes a tunnel segment, in which a vehicle is driven in and hereafter additional bags are inflated around the vehicle.
7. Method according to claim 6, with the characteristic that, from the vehicle inflatable bags are released, thrown or shot in the tunnel segment. Thereupon these bags will be inflated.
8. System for extinguishing a fire in a room with accesses, including means of closing for blocking accesses, with the characteristic that the system also includes inflatable bags, which can be arranged in an extended order in the room with additional means of inflation for inflating
5 the bags.
9. System according to claim 8, with the characteristic, that the means of closing include additional bags which are placed near accesses as well as additional means of inflation for inflating the additional bags.
10
10. System according to claim 9, with the characteristic that the bags are manufactured from at least substantially almost non-combustible materials.
15 11. System according to claim 8, with the characteristic that the means of inflation include at least one container with a compressed gas.
12. System according to claim 11 , with the characteristic that the compressed gas is non-combustible and virtually contains no oxygen.
20
13. System according to claim 8, with the characteristic, that the means of inflation includes means for mechanical gas displacement, for filling the bags with air present the room.
25 14. System according to claims of 8 to 13, with the characteristic that the system also includes a vehicle that is provided with additional bags attached to the outside.
SUBSTBTOTE SHEET (RULE 26)
15. System according to claim 14, with the characteristic, that the vehicle is also equipped with a throwing device designed for throwing or shooting inflatable bags in the tunnel. 5
16. Bags and means of inflation as part of a system according to one of the claims 8 to 15.
10 17. Vehicle as part of a system according to claim 14 or 15.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1035910 | 2008-09-09 | ||
| NL1035910 | 2008-09-09 | ||
| NL1037108 | 2009-07-09 | ||
| NL1037108A NL1037108C (en) | 2008-09-09 | 2009-07-09 | METHOD AND SYSTEM FOR EXTINGUISHING A FIRE, BAGS, BLOWING MEANS AND A VEHICLE AS PART OF THE SYSTEM. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010030172A1 true WO2010030172A1 (en) | 2010-03-18 |
Family
ID=41323595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/NL2009/000174 WO2010030172A1 (en) | 2008-09-09 | 2009-09-05 | Method and system for extinguishing a fire, as well as bags, inflating eguipment and a vehicle as part of the system |
Country Status (2)
| Country | Link |
|---|---|
| NL (1) | NL1037108C (en) |
| WO (1) | WO2010030172A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831318A (en) * | 1972-05-08 | 1974-08-27 | Rocket Research Corp | Explosion detection and suppression method and apparatus |
| WO1994011613A1 (en) * | 1991-02-04 | 1994-05-26 | Keith Terence Dracup | Bulkhead made of inflatable bags for tunnels, buildings or the like |
| US5501284A (en) * | 1994-04-22 | 1996-03-26 | Clodfelter; Robert G. | Inflatable bag fire extinguishing system |
| US6012532A (en) * | 1998-05-12 | 2000-01-11 | Kiefer; Karl F. | Method and apparatus for prevention, suppression or mitigation of explosions in confined subterranean chambers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8105216A (en) * | 1981-11-18 | 1983-06-16 | Berend Willem Rietberg | Chimney fire-extinguishing equipment - has inflatable sealing cushion through which non-inflammable compressed gas is delivered |
| GB2118039B (en) * | 1982-04-07 | 1985-12-18 | Edwin William Vanner | Method and apparatus for extinguishing fires |
| GB2255502A (en) * | 1991-02-04 | 1992-11-11 | Keith Terence Dracup | An inflatable bulkhead arrangement |
| DE10245831A1 (en) * | 2002-10-01 | 2004-04-15 | Pingo Erzeugnisse Gmbh | Fire protection device for non-observable spaces, in particular, in an aircraft comprises at least one hollow expandable body filled with a gaseous extinguishing agent |
-
2009
- 2009-07-09 NL NL1037108A patent/NL1037108C/en not_active IP Right Cessation
- 2009-09-05 WO PCT/NL2009/000174 patent/WO2010030172A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831318A (en) * | 1972-05-08 | 1974-08-27 | Rocket Research Corp | Explosion detection and suppression method and apparatus |
| WO1994011613A1 (en) * | 1991-02-04 | 1994-05-26 | Keith Terence Dracup | Bulkhead made of inflatable bags for tunnels, buildings or the like |
| US5501284A (en) * | 1994-04-22 | 1996-03-26 | Clodfelter; Robert G. | Inflatable bag fire extinguishing system |
| US6012532A (en) * | 1998-05-12 | 2000-01-11 | Kiefer; Karl F. | Method and apparatus for prevention, suppression or mitigation of explosions in confined subterranean chambers |
Also Published As
| Publication number | Publication date |
|---|---|
| NL1037108C (en) | 2010-03-15 |
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