Extinguishing Device, Extinguishing System, and Method for Local Firefighting

• US 20110259615A1
• Filed: 05/28/2008
• Published: 10/27/2011
• Est. Priority Date: 08/06/2007
• Status: Active Grant

• Current Assignee: BLÜCHER GmbH
• Original Assignee: BLÜCHER GmbH
• Inventors: von Blücher, Hasso
• Granted Patent: US 9,186,532 B2
• Time in Patent Office: Days
• US Class Current: 169/46
• CPC Class Codes: A62C 35/02 with containers for delivering the extinguishing substance
• CPC Class Codes: A62C 99/00 Subject matter not provided for in other groups of this subclass

Abstract

The invention relates to an extinguishing device designed for local firefighting in buildings on site at the source of a fire, said extinguishing device having a nozzle device having an extinguishing unit comprising a plurality of extinguishing nozzles designed for applying an extinguishing agent at the location of the source of the fire and for decentralized arrangement in the building, further comprising at least one extinguishing agent container connected to the extinguishing nozzles in a fluid-communicating fashion, at least one pressure-generating device for applying the extinguishing agent via the extinguishing nozzles, and at least one fire alarm sensor. According to the invention, the pressure-generating device is designed to generate an application pressure of at least 10 bar on the extinguishing agent.

Claims

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

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

at least one extinguishing agent container (6, 7) connected to the extinguishing nozzles (3) in a fluid-communicating fashion,

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

at least one fire alarm sensor (10),

characterized

in that the pressure-generating device (8) is designed for generating a discharge pressure of the extinguishing agent (4) of at least 10 bar.

2. The extinguishing device as claimed in claim 1, characterized in that the extinguishing agent (4) can be discharged as a spray mist.

3. The extinguishing device as claimed in claim 1 or 2, characterized in that the apex angle of the spray cone produced by an extinguishing nozzle (3) is less than 15°

, preferably less than 10°

.

4. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing unit (5) is formed as a three-dimensional formation, in particular as an extinguisher column.

5. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing nozzles (3) are arranged such that they are distributed over the wall of an elongate housing (11) of the extinguishing unit (5), in which case, when the extinguishing unit (5) is set up on a floor of the building, extinguishing nozzles (3) are arranged in the longitudinal direction of the wall of the housing (11) at a distance of at least 1.0 to 3.5 m from the floor and in which case, preferably, the extinguishing nozzles (3) are provided at least in the upper third of the wall of the housing (11).

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

7. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing agent (4) has at least one hydrophilic intumescent component, in which case, preferably, the component is dispersible in water, and in which case, more preferably, the component is a superabsorbent polymer.

8. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing agent (4) is obtainable from a mixture of extinguishing water (12) with at least one extinguishing water additive (13), in which case, preferably, a concentrate comprising at least one pre-swollen polymer in an organic phase is provided as the extinguishing water additive (13).

9. The extinguishing device as claimed in claim 8, characterized in that at least two extinguishing agent containers (6, 7) are provided, in which case a first extinguishing agent container (6) is provided for receiving extinguishing water (12) and a second extinguishing agent container (7) is provided for receiving the extinguishing water additive (13).

10. The extinguishing device as claimed in either of claims 8 and 9, characterized in that at least one mixing device (9) for mixing extinguishing water (12) and extinguishing water additive (13) is provided.

11. The extinguishing device as claimed in one of the preceding claims, characterized in that the discharge rate of the extinguishing agent (4) is between 100 and 5000 l/h, preferably between 500 and 2500 l/h.

12. The extinguishing device as claimed in one of the preceding claims, characterized in that the first extinguishing agent container (6) has a filling volume of between 10 and 1000 l, preferably between 100 and 750 l, and in that, more preferably, the second extinguishing agent container (7) has a smaller volume.

13. The extinguishing device as claimed in one of the preceding claims, characterized in that the pressure-generating device (8) is arranged within the extinguishing unit (5).

14. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing agent container (6, 7) is arranged within the extinguishing unit (5).

15. The extinguishing device as claimed in one of the preceding claims, characterized in that the mixing device (9) is arranged within the extinguishing unit (5).

16. The extinguishing device as claimed in one of the preceding claims, characterized in that an energy supply device arranged in the extinguishing unit (5) is provided and in that, preferably, the energy supply device has at least one rechargeable battery as an energy store.

17. The extinguishing device as claimed in one of the preceding claims, characterized in that the extinguishing unit (5) is arranged at a fixed location in the building.

18. The extinguishing device as claimed in one of the preceding claims, characterized in that a control device connected to the fire alarm sensor (10) is provided for activating an extinguishing function of the extinguishing device.

23. A method for local firefighting in buildings by means of at least one extinguishing device (1) as claimed in one of the preceding claims 1 to 18, the extinguishing device (1) having

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

at least one extinguishing agent container (6, 7) connected to the extinguishing nozzles (3) in a fluid-communicating fashion,

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

at least one fire alarm sensor (10),

characterized

in that the extinguishing agent (4) is discharged at a positive pressure of at least 10 bar, in which case, preferably, the extinguishing agent (4) is sprayed.

24. The method as claimed in claim 23, characterized in that the extinguishing agent (4) is obtained from a mixture of extinguishing water (12) with at least one extinguishing water additive (13), in which case, preferably, the extinguishing water additive (13) has at least one hydrophilic intumescent component.

25. The method as claimed in either of the preceding claims 23 and 24, characterized in that the extinguishing water (12) and the extinguishing agent additive (13) are fed to the nozzle device (2) separately from another and in that, more preferably, the extinguishing water (12) and the extinguishing water additive (13) are mixed directly before discharge.

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

27. The method as claimed in one of the preceding claims 23 to 26, characterized in that the extinguishing agent (4) is discharged over a time period of 1 to 10 minutes, preferably 2 to 5 minutes, in which case, preferably, the extinguishing agent (4) is discharged in cycles.

19. An extinguishing system with a plurality of extinguishing devices (1) of the aforementioned type, at least one, preferably each, extinguishing device (1) being operable in the extinguishing function independently of further extinguishing devices (1).

20. The extinguishing system as claimed in claim 19, characterized in that adjacent extinguishing devices (1) are spaced apart by less than 3 m, preferably less than 5 m.

21. An extinguishing system with a plurality of extinguishing devices (1) of the aforementioned type, in particular the extinguishing system as claimed in claim 19 or 20, characterized in that a plurality of adjacent extinguishing devices (1) can be operated simultaneously, the activation of the extinguishing function of a first extinguishing device (1) only leading to the automatic activation of the extinguishing functions of those further extinguishing devices (1) that are arranged directly adjacent the first extinguishing device (1).

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

28. An extinguishing device (17) designed for local firefighting outside buildings, at the location of the source of a fire, having

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

at least one manually actuable high-pressure spray device (19) with at least one extinguishing nozzle (28), connected to the extinguishing agent container (20, 22) in a fluid-communicating fashion, and

at least one pressure-generating device (24) for discharging extinguishing agent (26) via the high-pressure spray device (19),

the pressure-generating device being designed for generating a discharge pressure of the extinguishing agent (26) of at least 10 bar.

29. The extinguishing device as claimed in claim 28, characterized in that the extinguishing agent (26) can be discharged as a spray mist.

30. The extinguishing device as claimed in either of the preceding claims 28 and 29, characterized in that the apex angle of the spray cone produced by the extinguishing nozzle (28) is less than 15°

, preferably less than 10°

.

31. The extinguishing device as claimed in one of the preceding claims 28 to 30, characterized in that the extinguishing agent (26) has at least one hydrophilic intumescent component, in which case, preferably, the component is dispersible in water, and in which case, more preferably, the component is a superabsorbent polymer.

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

33. The extinguishing device as claimed in claim 32, characterized in that at least two extinguishing agent containers (20, 22) are provided, in which case a first extinguishing agent container (20) is provided for receiving extinguishing water (21) and a second extinguishing agent container (22) is provided for receiving the extinguishing water additive (23).

34. The extinguishing device as claimed in either of claims 32 and 33, characterized in that at least one mixing device for mixing extinguishing water (21) and extinguishing water additive (23) is provided.

35. The extinguishing device as claimed in one of the preceding claims 28 to 34, characterized in that the discharge rate of the extinguishing agent (26) is between 100 and 2500 l/h, preferably between 500 and 1600 l/h.

36. The extinguishing device as claimed in 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 l, in particular between 100 and 500 l, and in that, preferably, the second extinguishing agent container (22) has a smaller volume.

37. The extinguishing device as claimed in one of the preceding claims 28 to 36, characterized in that an energy supply device arranged in the extinguishing unit (18) is provided and in that, preferably, the energy supply device has at least one rechargeable battery as an energy store.

38. A method for local firefighting outside buildings, at the location of the source of a fire, by means of at least one extinguishing device (17) as claimed in one of the preceding claims 28 to 37, the extinguishing device (17) having

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

at least one manually actuable high-pressure spray device (19) with at least one extinguishing nozzle (28), connected to the extinguishing agent container (20, 22) in a fluid-communicating fashion, and

at least one pressure-generating device (24) for discharging extinguishing agent (26) via the high-pressure spray device (19),

the extinguishing agent (26) being discharged at a positive pressure of at least 10 bar.

39. The method as claimed in 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), in which case, preferably, the extinguishing water additive (13) has at least one hydrophilic intumescent component.

40. The method as claimed in claim 39, characterized in that the extinguishing water (21) and the extinguishing water additive (23) are fed to the extinguishing nozzle (28) separately from one another and in that, more preferably, the extinguishing water (21) and the extinguishing water additive (23) are mixed directly before discharge.

41. The method as claimed in either of the preceding claims 39 and 40, characterized in that the extinguishing water (21) and the extinguishing water additive (23) are discharged separately from one another.

42. The method as claimed in one of the preceding claims 38 to 41, characterized in that the extinguishing agent (26) is discharged over a time period of 1 to 10 minutes, preferably 2 to 5 minutes, in which case, preferably, the extinguishing agent (26) is discharged in cycles.