EXTINGUISHING DEVICE AND EXTINGUISHING METHOD

Abstract

An extinguishing device and extinguishing method, including a dispensing device and an extinguishing agent supply. The dispensing device has a pump device and a nozzle device in order to dispense an extinguishing agent. The extinguishing device features the extinguishing agent supply including at least one bag device having a flexible wall.

Claims

1. An extinguishing device, comprising: at least one dispensing device and at least one extinguishing agent supply; wherein the dispensing device comprises at least one pump device and at least one nozzle device in order to dispense at least one extinguishing agent from the extinguishing agent supply; and the extinguishing agent supply comprises at least one bag device having at least one flexible wall.

2. The extinguishing device according to claim 1, comprising at least one housing, in which the dispensing device and/or the extinguishing agent supply are at least partially arranged.

3. The extinguishing device according to claim 2, wherein the housing has at least one ventilation opening.

4. The extinguishing device according to claim 1, wherein the flexible wall of the bag device is not stretchable or only slightly stretchable.

5. The extinguishing device according to claim 1, wherein an intake side of the pump device is operatively connected to the extinguishing agent supply and wherein a discharge side of the pump device is operatively connected to the nozzle device.

6. The extinguishing device according to claim 1, wherein the bag device comprises at least one foil bag, which is in particular mechanically glued, sealed and/or clamped.

7. The extinguishing device according to claim 1, wherein the extinguishing agent supply comprises two or more bag devices.

8. The extinguishing device according to claim 7, wherein the extinguishing agents contained in the bag devices have at least partially different chemical properties from one another and/or wherein the bag devices contain functional components of an extinguishing agent.

9. The extinguishing device according to claim 1, wherein the bag device comprises at least one locking element, which is in particular assigned to the bag device and/or which is arranged within the bag device, and/or is connected to the bag device.

10. The extinguishing device according to claim 9, wherein the locking element is hollow on the inside and comprises at least one intake opening, which is operatively connected to the pump device.

11. The extinguishing device according to claim 9, wherein the locking element extends over a substantial part of the bag device.

12. The extinguishing device according to claim 1, wherein the dispensing device comprises at least one magnetic valve and/or at least one mixing chamber.

13. The extinguishing device according to claim 1, wherein the dispensing device comprises at least one control device and/or wherein the control device has at least one electrical component and/or at least one electrical circuit.

14. The extinguishing device according to claim 13, wherein the dispensing device comprises at least one energy storage device and/or at least one power generation device.

15. The extinguishing device according to claim 13, wherein the dispensing device comprises at least one detection device.

16. The extinguishing device according to claim 15, wherein the at least one detection device is arranged on the nozzle device.

17. The extinguishing device according to claim 1, wherein the dispensing device comprises at least one signal device in order to emit at least one audible and/or visual signal.

18. The extinguishing device according to claim 1, wherein the dispensing device comprises at least one communication device.

19. An extinguishing method having an extinguishing device according to claim 1, comprising: discharging a volume of an extinguishing agent out of an extinguishing agent supply by means of a pump device through a nozzle device; and the extinguishing agent is sucked out of a bag device having a flexible wall.

20. The extinguishing method according to claim 19, wherein a bag volume is reduced by the volume of the discharged volume of the extinguishing agent.

21. The extinguishing method according to claim 19, wherein the extinguishing agent comprises at least two functional components, and wherein the functional components are contained in separate bag devices of the extinguishing agent supply and are mixed in at least one mixing chamber during dispensing.

Description

[0056] In the figures:

[0057] FIG. 1 shows a purely schematic sectional view of an exemplary embodiment of an extinguishing device according to the invention, which is designed as a hand-held fire extinguisher;

[0058] FIG. 2 shows a purely schematic sectional view of a further exemplary embodiment of an extinguishing device according to the invention, which is housed in a cylindrical housing and has two bag devices;

[0059] FIG. 3 shows a purely schematic sectional view of a next exemplary embodiment of an extinguishing device according to the invention, which is housed in a cylindrical housing and has one bag device;

[0060] FIG. 4 shows a purely schematic sectional view of another exemplary embodiment of an extinguishing device according to the invention having two bag devices in an alternative arrangement from FIG. 2.

[0061] FIG. 5 shows a purely schematic sectional view of a further exemplary embodiment of an extinguishing device according to the invention having a bag device, wherein the detection device is arranged directly on the nozzle device.

[0062] FIG. 1 shows a purely schematic sectional view of a first exemplary embodiment of an extinguishing device 1 according to the invention. The housing 24 of the extinguishing device 1 is designed as a housing 24 of a hand-held fire extinguisher here.

[0063] The dispensing device 2 is arranged in the upper part of the housing 24 here, whilst the extinguishing agent supply 3 is arranged in the lower part of the housing 24. The extinguishing agent supply 3 comprises a bag device 9 having a flexible wall 10 here. The bag device 9 is designed as a foil bag 13 in the present example. The foil bag 13 is mechanically sealed by an air-tight clamp. In this way, the foil bag 13 can be re-used after an extinguishing operation and also quickly re-filled if necessary.

[0064] The nozzle device 5 is formed on the outside of the housing 24 as a tube having a metallic nozzle arranged on the end. The nozzle device 5 can preferably be guided by hand and, for example, directed to a source of fire.

[0065] The locking element 11, which is hollow on the inside, is designed here as an intake pipe and has several intake openings 12 here. The extinguishing agent 6 is sucked out of the bag device 9 by the pump device 4 through the intake openings 12. The locking element 12 in particular prevents the sides of the bag from pulling completely together during emptying, which would prevent the discharge of extinguishing agent.

[0066] The intake side 7 of the pump device 4 is connected directly to the locking element 11 here. The discharge side 8 of the pump device 4 is operatively connected to the nozzle device 5 via a magnetic valve 15.

[0067] The function of the extinguishing device 1 is controlled by the control device 17. The control device 17 comprises several electrical components 18 and electrical circuits 18. The control device 17 also comprises an electrical switching element 19. The pump device 4 can be put into operation and an extinguishing operation initiated with the switching element 19, which is arranged on the outside of the grab handle.

[0068] The electrical energy to drive the pump device 4 is provided by the energy storage device 20. The energy storage device 20 is preferably designed as a rechargeable battery or accumulator, which is arranged within the extinguishing device 1.

[0069] Alternatively, the electrical energy required to drive the pump device 4 can be provided by a power generation device 20 even directly within the extinguishing device 1. The power generation device 20 could, for example, comprise a solar module and/or a solar panel or even produce thermal and/or electrical energy by a chemical reaction, which differs from the functional principle of a battery.

[0070] In an extinguishing operation, the extinguishing agent 6 is sucked out of the bag device 9 by the pump device 4 and discharged through the nozzle device 5. Due to the flexible wall 10 of the bag device 9, the change in volume 26 of the bag device 9 corresponds approximately and in particular exactly to the discharged volume of extinguishing agent 6a.

[0071] A ventilation opening 25 is provided so that no negative pressure is created in the housing 24. This compensates for a possible change in pressure in the housing 24. Ideally, there is thus always almost ambient pressure inside the bag device 9.

[0072] Thanks to the flexible wall 10 of the bag device 9, the extinguishing device 1 according to the invention functions independently of its position and/or orientation. No compressed or propellant gas is required to dispense the extinguishing agent 6. In this case, the flexible wall 10 is ideally not stretchable such that no energy is mechanically stored in the flexible wall 10 of the bag device 9.

[0073] The housing 24 protects the bag device 9 with the flexible wall 10 from damage, for example caused by external force. In addition, the bag device 9, which is designed here as a foil bag 13, is protected by the housing 24 from direct exposure to heat.

[0074] FIG. 2 shows an alternative exemplary embodiment of the extinguishing device 1 according to the invention. Here too, the extinguishing device 1 is limited to a purely schematic sectional illustration.

[0075] Unlike FIG. 1, the housing 24 has a cylindrical or even square base body. This makes it possible, above all, to achieve a compact design. The housing 24 illustrated here is suitable for installation, for example, on an extractor fan, which is located in the kitchen of a house or mobile home. It is also possible to use it, for example, in the hold of an aeroplane or generally in aviation or even next to gas connections in flats or houses.

[0076] In contrast to the exemplary embodiment in FIG. 1, the extinguishing agent supply 3 has two bag devices 9, which are both designed here as foil bags 13. Both bag devices 9 respectively have a locking element 11. The locking elements 11 enable the extinguishing agents to be sucked in directly for dispensing.

[0077] The extinguishing device 1 has a mixing chamber 16. The extinguishing agents can be mixed in proportion to one another in the mixing chamber 16 prior to dispensing. The mixed extinguishing agents 6 are then discharged through the nozzle device together or, depending on the application, also individually.

[0078] Alternatively, functional components 14 of a single extinguishing agent 6 can be stored within the bag devices 9. During dispensing, the functional components 14 are mixed within the mixing chamber 16, and in particular also chemically activated.

[0079] Depending on the design and application, however, different extinguishing agents or even other components can also be present in the different supplies. In this way, different extinguishing agents can be stored, for example, and are discharged depending on the situation identified. An extinguishing agent can be provided as well as a second substance to neutralise the extinguishing agent, which is dispensed after an extinguishing operation.

[0080] The switching element 19 is preferably arranged on an end side of the housing 24. In an emergency, an extinguishing operation can thus be initiated manually by a user. In addition, an extinguishing operation can be initiated by the detection device 21. The detection device 21 is preferably designed as a temperature sensor here. If a threshold temperature is exceeded, an electrical signal of the detection device 21 is passed on to the control device 17, which then initiates the extinguishing operation and activates the pump device 4.

[0081] In addition, the dispensing device 2 comprises a signal device 22 here. When an extinguishing operation is initiated, the signal device 22 emits a loud alarm sound to indicate the initiation of the extinguishing operation and to warn of the potential source of danger.

[0082] Furthermore, the dispensing device 2 comprises a communication device 23. The communication device 23 has a GSM radio module to establish a telephone connection directly to the fire brigade.

[0083] FIG. 3 shows an alternative exemplary embodiment of the extinguishing device 1 illustrated in FIG. 2. Here, the extinguishing agent supply 3 only comprises one bag device 9. As a result, the dimensions of the housing 24 can be selected to be smaller.

[0084] FIG. 4 too shows an alternative exemplary embodiment of the extinguishing device 1 according to the invention illustrated in FIG. 2. Here, the dispensing device is arranged in the centre of the housing 24 between two bag devices 9 of the extinguishing agent supply 3.

[0085] The switching element 19 and the detection device 21 are also arranged in the centre of the housing 24. The extinguishing device 1 can preferably be adapted to the structural conditions of a location by adjusting the design.

[0086] FIG. 3 shows a further alternative exemplary embodiment of the extinguishing device 1 according to the invention. Here, the detection device 21 is arranged directly on the nozzle device 5. In this case, the detection device 5 is designed here such that a flow cross section of the nozzle device 5 is covered. The effective flow cross section of the nozzle device 5 is only released once an extinguishing operation is initiated by the detection device 5.

[0087] The extinguishing device 1 according to the invention is not limited to the exemplary embodiments shown here. The applicant reserves the right to claim further exemplary embodiments of the invention. In particular, arrangements with 3, 4 or even 5 bag devices are also possible.

REFERENCE LIST

[0088] 1 Fire extinguishing device [0089] 2 Dispensing device [0090] 3 Extinguishing agent supply [0091] 4 Pump device [0092] 5 Nozzle device [0093] 6 Extinguishing agent [0094] 61 Discharged extinguishing agent volume [0095] 7 Intake side [0096] 8 Discharge side [0097] 9 Bag device [0098] 10 Flexible wall [0099] 11 Locking device [0100] 12 Intake opening [0101] 13 Foil bag [0102] 14 Functional component [0103] 15 Magnetic valve [0104] 16 Mixing chamber [0105] 17 Control device [0106] 18 Electrical component/circuit [0107] 19 Switch [0108] 20 Energy storage device, power generation device [0109] 21 Detection device [0110] 22 Signal device [0111] 23 Communication device [0112] 24 Housing, hand-held fire extinguisher [0113] 25 Ventilation opening [0114] 26 Change in bag volume