EP2108408A1 - Fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings, especially existing multi-storey buildings - Google Patents
Fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings, especially existing multi-storey buildings Download PDFInfo
- Publication number
- EP2108408A1 EP2108408A1 EP20090005107 EP09005107A EP2108408A1 EP 2108408 A1 EP2108408 A1 EP 2108408A1 EP 20090005107 EP20090005107 EP 20090005107 EP 09005107 A EP09005107 A EP 09005107A EP 2108408 A1 EP2108408 A1 EP 2108408A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extinguishing
- fire
- activating
- electrical conductor
- buildings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/62—Pipe-line systems dry, i.e. empty of extinguishing material when not in use
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Definitions
- the object of the invention is fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings - especially existing multi-storey buildings.
- Multi-storey buildings - especially residential buildings built a long time ago - are characterized by a lot of fire protection problems not present in single-storey, or two-to-three-storey buildings.
- the higher a building the greater the risk presented by the vertical architectural, service elements - thus the elevator shaft, the staircase, the service shaft and the vent stack located therein, etc. - from the point of view of fire protection.
- the service elements, especially the service shaft with the vent stack significantly increase the risk of fast fire-spread.
- the so called "stack effect" generated in the vertical architectural elements increases the speed of fire-spread, and may cause further fire occurrences at locations away from the seat of the fire.
- the object of patent No. 200238 is a fire alarm cable, comprising two alarm wires twisted together, held together by the twisting and an outer sheath, separated from each other by insulation.
- the alarm wires disintegrate at a predetermined temperature.
- This invention is suitable for providing an alarm in a reliable manner in the event of the occurrence (outbreak) of fire.
- Patent No. 224146 discloses a useful invention.
- the object of the invention is a fire alarm device, comprising sensors for the detection of fire and an evaluation unit triggering the alarm.
- the evaluation unit in the event of exceeding the predetermined value of a particular fire characteristic, triggers an alarm signal, indicating the unusability of the affected escape route.
- the object of patent No. 214557 is fire-fighting equipment, where aerosol is generated by the combustion of a solid extinguishing agent in a container outside the protected area, and the generated aerosol is led to the protected area by means of pipes.
- Patent No. E000678 discloses fire-fighting equipment for extinguishing fires occurring in tunnels or similar structures.
- the fire-fighting equipment has two extinguishing units that can be guided along a guide rail mounted above the passageway, and can be coupled to the rail and moved along the rail by means of a drive system.
- the extinguishing units have two containers, one container contains the propellant, while the other container contains the extinguishing agent.
- the container containing the extinguishing agent is connected to the nozzle of the extinguishing unit by means of piping, and the position of the nozzles is adjustable.
- the extinguishing units have one or more sensors for the detection fire, and for positioning the extinguishing units and controlling the nozzles.
- No. E000678 discloses a similar complex solution for giving an alarm and also extinguishing the fire, but that invention cannot be used in the service shafts and vent stacks of residential buildings.
- the task of the utility model is to provide fixed fire-fighting equipment that allows - especially in the service shafts, and the vent stacks located therein, of medium-height multi-storey residential buildings - the early detection, localization and immediate efficient extinguishing of fires. It shall also inhibit, or significantly delay the spread of fire through the vent system.
- the object of the utility model is thus fixed fire-fighting equipment for the fire protection of buildings - especially already existing multi-storey buildings -, comprising an extinguishing system and an electrical extinguishing activating and temperature sensing system, which are connected to each other through an electrical conductor.
- the components of the extinguishing system are: an extinguishing agent container-assembly and an extinguishing agent pipe; the extinguishing agent container-assembly is equipped with an activating valve, the extinguishing agent pipe is connected to the activating valve in a releasable manner.
- the section of the extinguishing agent pipe located in the protected space has at least one opening.
- the components of the electrical extinguishing activating and temperature sensing system are: an extinguishing activating unit and a temperature limit sensing electrical conductor.
- the temperature limit sensing electrical conductor is connected to the extinguishing activating unit in a releasable manner, and the section of the temperature limit sensing electrical conductor located in the protected space is equipped with at least one temperature limit sensing unit.
- the extinguishing activating unit is connected to the activating valve through an electrical conductor, and the extinguishing agent pipe and the temperature limit sensing electrical conductor are arranged alongside each other in the protected space.
- a manual electrical signalling device is also connected to the extinguishing activating unit.
- the fixed fire-fighting equipment according to the invention is shown in detail in the following figure.
- Figure 1 shows schematically the structure of a possible embodiment of the fixed fire-fighting equipment according to the invention.
- Figure 1 shows a schematic drawing of the fire-fighting equipment installed in the service shaft 20, equipped with a vent stack 21, of a five-storey building.
- the figure shows well the two main parts of the fixed fire-fighting equipment: the extinguishing system and the electrical extinguishing activating and temperature sensing system.
- the extinguishing system comprises an extinguishing agent container-assembly 10 and an extinguishing agent pipe 14.
- the extinguishing agent container-assembly 10 is generally placed on the roof of the building beside the vent stack 21, above the protected space.
- the extinguishing agent container-assembly 10 is equipped with a pressure indicating manometer 11, a shut-off valve 12 and an activating valve 13.
- the extinguishing agent pipe 14 is connected to the activating valve 13, its section located in the protected space (the service shaft 20 and/or the vent stack 21) is equipped with openings 15.
- the section of the extinguishing agent pipe 14 equipped with openings 15 is installed along the whole length of the protected space.
- the electrical extinguishing activating and temperature sensing system comprises an extinguishing activating unit 17 and a temperature limit sensing electrical conductor 16.
- the extinguishing activating unit 17 is a unit capable of both receiving electronic signals (activating signals) and transmitting electronic signals.
- the temperature limit sensing electrical conductor 16, and an electrical conductor 19 are connected to the extinguishing activating unit 17 in a releasable manner.
- the temperature limit sensing electrical conductor 16 is equipped with temperature limit sensing units 22.
- the temperature limit sensing electrical conductor 16 (line-type temperature limit sensing circuit) is a two-wire electrical conductor, which has built-in temperature limit sensing units 22.
- the section of the temperature limit sensing electrical conductor 16 equipped with temperature limit sensing units 22 is installed along the whole length of the protected space.
- the temperature limit sensing units 22 are built-in by storey in the temperature limit sensing electrical conductor 16.
- the section of the extinguishing agent pipe 14 equipped with openings 15 and the section of the temperature limit sensing electrical conductor 16 equipped with temperature limit sensing units 22 are bundled together in the protected space.
- the direct connection between the extinguishing system and the electrical extinguishing activating and temperature sensing system is ensured by the electrical conductor 19 connecting the extinguishing activating unit 17 to the activating valve 13.
- more than one extinguishing systems can be connected to one extinguishing activating unit 17.
- the figure also shows that manual electrical signalling devices 18 are installed by storey in the building, which are also connected to the extinguishing activating unit 17 through the electrical conductor 19 in a releasable manner.
- the extinguishing agent container-assembly 10 is a container dimensioned for the protected space, containing fire-extinguishing powder, foam or extinguishing gas, e.g. a 7-13 litre carbon steel container containing 6-12 kg ABC fire-extinguishing powder (EN 615) at an N 2 pressure of 14 bar.
- the shut-off valve 12 is preferably a ball valve or a screw valve.
- the extinguishing agent pipe 14 is generally a flexible, heat-resistant rubber pipe according to the local circumstances.
- the extinguishing agent pipe 14 - if the local circumstances allow - can be a metal pipe (copper or steel pipe).
- the openings 15 are dimensioned, designed (e.g.
- the activating temperature of the temperature limit sensing unit 22 is selected, for example, on the basis of the temperature of the flue gases generated in the protected space. It is advisable to set the activating temperature of the temperature limit sensing unit 22 to a range below the ignition temperature: about 150-180°C.
- the fixed fire-fighting equipment according to the utility model can be implemented in various versions, depending on the local circumstances, and the level of risk.
- the extinguishing agent pipe 14 and the temperature limit sensing electrical conductor 16 can be installed
- the extinguishing agent container-assembly can consist of two containers, where one container contains the propellant (N 2 ), while the other contains the extinguishing agent (powder).
- sound and light alarm elements are also built-in in the fixed fire-fighting equipment.
- the fixed fire-fighting equipment Upon the occurrence of fire, in the event of the automatic activation of extinguishing, the fixed fire-fighting equipment operates in such a way that the temperature limit sensing unit 22 built-in in the temperature limit sensing electrical conductor 16 breaks the circuit (with a potential-free opening contact), thereby sending an activating signal to the extinguishing activating unit 17.
- the extinguishing activating unit 17 opens the activating valve 13, and thus the extinguishing agent stored in the extinguishing agent container-assembly 10 flows to the protected space (service shaft 20 and/or vent stack 21) through the extinguishing agent pipe 14 and the openings 15 located thereon, and extinguishes the fire.
- the activating signal reaches the extinguishing activating unit 17, which in turn opens the activating valve 13, through the electrical conductor 19.
- the solution according to the utility model is fixed fire-fighting equipment allowing the early detection, localization and efficient extinguishing of fires in the service shafts and/or vent stacks of buildings. It inhibits, or delays the spread of fire through the vent system.
- the equipment can be installed easily and at low cost in already existing multi-storey residential buildings as well, without any demolition.
- a further advantage of the solution according to the utility model is that it is compact, it can be delivered in a prefabricated manner, and it can be relocated from one place to another without any demolition.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
- The object of the invention is fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings - especially existing multi-storey buildings.
- Multi-storey buildings - especially residential buildings built a long time ago - are characterized by a lot of fire protection problems not present in single-storey, or two-to-three-storey buildings. The higher a building, the greater the risk presented by the vertical architectural, service elements - thus the elevator shaft, the staircase, the service shaft and the vent stack located therein, etc. - from the point of view of fire protection. In the event of fire the service elements, especially the service shaft with the vent stack, significantly increase the risk of fast fire-spread. The so called "stack effect" generated in the vertical architectural elements increases the speed of fire-spread, and may cause further fire occurrences at locations away from the seat of the fire. The most frequent and at the same time most dangerous locations of fire occurrences, and in multi-storey residential buildings fire-spread are: the points where the vent ducts are connected to the homes, the cooker hoods. For the vast majority of home fires occur in kitchens, and spread because a considerable amount of inflammable fat, oil and other residuum is deposited in the cooker hoods. Fires in buildings (panel blocks of flats) that could be extinguished much sooner, and would cause less damage and pose less danger to human life, if the fire protection of the service shafts of multi-storey buildings was solved, occurred in the past and occur even nowadays.
- The state of the art includes many patent descriptions providing a solution for either fire alarm or fire extinguishing.
- The object of patent No.
200238 - Patent No.
224146 - The object of patent No.
214557 - Patent No.
E000678 - From the above patents only No.
E000678 - The task of the utility model is to provide fixed fire-fighting equipment that allows - especially in the service shafts, and the vent stacks located therein, of medium-height multi-storey residential buildings - the early detection, localization and immediate efficient extinguishing of fires. It shall also inhibit, or significantly delay the spread of fire through the vent system.
- To solve the task, we developed compact fire-fighting equipment relocatable without any modification, which in the event of fire activates the release of the extinguishing agent into the protected space (service shaft and/or vent stack) through the installed extinguishing agent pipe and the openings located thereon automatically, or by means of a manual electrical signalling device.
- The object of the utility model is thus fixed fire-fighting equipment for the fire protection of buildings - especially already existing multi-storey buildings -, comprising an extinguishing system and an electrical extinguishing activating and temperature sensing system, which are connected to each other through an electrical conductor.
The components of the extinguishing system are: an extinguishing agent container-assembly and an extinguishing agent pipe; the extinguishing agent container-assembly is equipped with an activating valve, the extinguishing agent pipe is connected to the activating valve in a releasable manner. The section of the extinguishing agent pipe located in the protected space has at least one opening.
The components of the electrical extinguishing activating and temperature sensing system are: an extinguishing activating unit and a temperature limit sensing electrical conductor. The temperature limit sensing electrical conductor is connected to the extinguishing activating unit in a releasable manner, and the section of the temperature limit sensing electrical conductor located in the protected space is equipped with at least one temperature limit sensing unit. The extinguishing activating unit is connected to the activating valve through an electrical conductor, and the extinguishing agent pipe and the temperature limit sensing electrical conductor are arranged alongside each other in the protected space.
According to a preferred embodiment a manual electrical signalling device is also connected to the extinguishing activating unit. - The fixed fire-fighting equipment according to the invention is shown in detail in the following figure.
-
Figure 1 shows schematically the structure of a possible embodiment of the fixed fire-fighting equipment according to the invention. -
Figure 1 shows a schematic drawing of the fire-fighting equipment installed in theservice shaft 20, equipped with avent stack 21, of a five-storey building. The figure shows well the two main parts of the fixed fire-fighting equipment: the extinguishing system and the electrical extinguishing activating and temperature sensing system.
The extinguishing system comprises an extinguishing agent container-assembly 10 and anextinguishing agent pipe 14. The extinguishing agent container-assembly 10 is generally placed on the roof of the building beside thevent stack 21, above the protected space. The extinguishing agent container-assembly 10 is equipped with apressure indicating manometer 11, a shut-offvalve 12 and an activatingvalve 13. Theextinguishing agent pipe 14 is connected to the activatingvalve 13, its section located in the protected space (theservice shaft 20 and/or the vent stack 21) is equipped withopenings 15. The section of the extinguishingagent pipe 14 equipped withopenings 15 is installed along the whole length of the protected space. - The electrical extinguishing activating and temperature sensing system comprises an extinguishing activating
unit 17 and a temperature limit sensingelectrical conductor 16. The extinguishing activatingunit 17 is a unit capable of both receiving electronic signals (activating signals) and transmitting electronic signals. The temperature limit sensingelectrical conductor 16, and anelectrical conductor 19 are connected to the extinguishing activatingunit 17 in a releasable manner.
The temperature limit sensingelectrical conductor 16 is equipped with temperaturelimit sensing units 22. The temperature limit sensing electrical conductor 16 (line-type temperature limit sensing circuit) is a two-wire electrical conductor, which has built-in temperaturelimit sensing units 22. The section of the temperature limit sensingelectrical conductor 16 equipped with temperaturelimit sensing units 22 is installed along the whole length of the protected space.
In the embodiment the temperaturelimit sensing units 22 are built-in by storey in the temperature limit sensingelectrical conductor 16.
The section of the extinguishingagent pipe 14 equipped withopenings 15 and the section of the temperature limit sensingelectrical conductor 16 equipped with temperaturelimit sensing units 22 are bundled together in the protected space.
The direct connection between the extinguishing system and the electrical extinguishing activating and temperature sensing system is ensured by theelectrical conductor 19 connecting the extinguishing activatingunit 17 to the activatingvalve 13. - As shown in the figure, more than one extinguishing systems can be connected to one extinguishing activating
unit 17. - The figure also shows that manual
electrical signalling devices 18 are installed by storey in the building, which are also connected to the extinguishing activatingunit 17 through theelectrical conductor 19 in a releasable manner. - The extinguishing agent container-
assembly 10 is a container dimensioned for the protected space, containing fire-extinguishing powder, foam or extinguishing gas, e.g. a 7-13 litre carbon steel container containing 6-12 kg ABC fire-extinguishing powder (EN 615) at an N2 pressure of 14 bar.
The shut-offvalve 12 is preferably a ball valve or a screw valve.
The extinguishingagent pipe 14 is generally a flexible, heat-resistant rubber pipe according to the local circumstances. The extinguishing agent pipe 14 - if the local circumstances allow - can be a metal pipe (copper or steel pipe). Theopenings 15 are dimensioned, designed (e.g. nozzles) according to the geometry of theservice shaft 20 or thevent stack 21.
The activating temperature of the temperaturelimit sensing unit 22 is selected, for example, on the basis of the temperature of the flue gases generated in the protected space. It is advisable to set the activating temperature of the temperaturelimit sensing unit 22 to a range below the ignition temperature: about 150-180°C. - The fixed fire-fighting equipment according to the utility model can be implemented in various versions, depending on the local circumstances, and the level of risk. The
extinguishing agent pipe 14 and the temperature limit sensingelectrical conductor 16 can be installed - in the service shaft and the vent stack,
- only in the vent stack.
- According to another preferred embodiment (e.g. in the case of powder extinguishing agent) the extinguishing agent container-assembly can consist of two containers, where one container contains the propellant (N2), while the other contains the extinguishing agent (powder).
- According to yet another preferred embodiment sound and light alarm elements are also built-in in the fixed fire-fighting equipment.
- Upon the occurrence of fire, in the event of the automatic activation of extinguishing, the fixed fire-fighting equipment operates in such a way that the temperature
limit sensing unit 22 built-in in the temperature limit sensingelectrical conductor 16 breaks the circuit (with a potential-free opening contact), thereby sending an activating signal to theextinguishing activating unit 17.
Theextinguishing activating unit 17 opens the activatingvalve 13, and thus the extinguishing agent stored in the extinguishing agent container-assembly 10 flows to the protected space (service shaft 20 and/or vent stack 21) through the extinguishingagent pipe 14 and theopenings 15 located thereon, and extinguishes the fire. - If extinguishing is activated by means of the manual
electrical signalling device 18, the activating signal reaches theextinguishing activating unit 17, which in turn opens the activatingvalve 13, through theelectrical conductor 19. - The solution according to the utility model is fixed fire-fighting equipment allowing the early detection, localization and efficient extinguishing of fires in the service shafts and/or vent stacks of buildings. It inhibits, or delays the spread of fire through the vent system. The equipment can be installed easily and at low cost in already existing multi-storey residential buildings as well, without any demolition.
A further advantage of the solution according to the utility model is that it is compact, it can be delivered in a prefabricated manner, and it can be relocated from one place to another without any demolition. Considering the fires that have occurred recently in panel blocks of flats, the installation of the equipment forming the object of the utility model, especially in existing medium-height residential buildings by taking into consideration the local circumstances as well, means a partial, but also safety providing solution for one of the most important fire protection problems. -
- 10 Extinguishing agent container-assembly
- 11 Manometer
- 12 Shut-off valve
- 13 Activating valve
- 14 Extinguishing agent pipe
- 15 Openings
- 16 Temperature limit sensing electrical conductor
- 17 Extinguishing activating unit
- 18 Manual electrical signalling device
- 19 Electrical conductor
- 20 Service shaft
- 21 Vent stack
- 22 Temperature limit sensing unit
Claims (5)
- Fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings - especially existing multi-storey buildings -, comprising an extinguishing system and an electrical extinguishing activating and temperature sensing system, which are connected to each other through an electrical conductor (19), wherein the components of the extinguishing system are: an extinguishing agent container-assembly (10) and an extinguishing agent pipe (14); the extinguishing agent container-assembly (10) is equipped with an activating valve (13), the extinguishing agent pipe (14) is connected to the activating valve (13) in a releasable manner, and the section of the extinguishing agent pipe (14) located in the protected space has at least one opening (15);
the components of the electrical extinguishing activating and temperature sensing system are: an extinguishing activating unit (17) and a temperature limit sensing electrical conductor (16); the temperature limit sensing electrical conductor (16) is connected to the extinguishing activating unit (17) in a releasable manner, and the section of the temperature limit sensing electrical conductor (16) located in the protected space is equipped with at least one temperature limit sensing unit (22),
the extinguishing activating unit (17) is connected to the activating valve (13) through an electrical conductor (19), and the extinguishing agent pipe (14) and the temperature limit sensing electrical conductor (16) are arranged alongside each other in the protected space. - The fixed fire-fighting equipment according to claim 1, wherein the openings (15) are dimensioned according to the geometry of the protected space.
- The fixed fire-fighting equipment according to claims 1-2, wherein the openings (15) in the extinguishing agent pipe are nozzles.
- The fixed fire-fighting equipment according to claim 1, wherein the temperature limit sensing electrical conductor (16) is equipped with temperature limit sensing units (22) by storey.
- The fixed fire-fighting equipment according to claims 1-4, wherein at least one manual electrical signalling device (18) is connected to the extinguishing activating unit (17) in a releasable manner through the electrical conductor (19).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU0800067U HU3556U (en) | 2008-04-09 | 2008-04-09 | Extingvisher for air-ducts and sanitary-ducts of multi-storey buildings |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2108408A1 true EP2108408A1 (en) | 2009-10-14 |
Family
ID=39415097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090005107 Withdrawn EP2108408A1 (en) | 2008-04-09 | 2009-04-07 | Fixed fire-fighting equipment for the fire protection of the service shafts and vent stacks of buildings, especially existing multi-storey buildings |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2108408A1 (en) |
HU (1) | HU3556U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105788431A (en) * | 2016-05-24 | 2016-07-20 | 青岛亿和海丽安防科技有限公司 | Oil pan and fuel gas fire extinguishment demonstration device |
CN109513138A (en) * | 2018-12-26 | 2019-03-26 | 吉林省福瑞达水电设备工程有限公司 | A kind of power equipment automatic fire extinguisher |
CN113134202A (en) * | 2021-05-12 | 2021-07-20 | 钟星建设集团有限公司 | Building wisdom fire extinguishing system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191108909A (en) * | 1910-04-09 | 1912-02-08 | Wilhelm Graaff | Method and Device for Extinguishing Fires. |
US3603403A (en) * | 1969-08-20 | 1971-09-07 | Lewis Eng Co | Automatic fire extinguishing apparatus |
US4453155A (en) * | 1980-07-28 | 1984-06-05 | Raincloud, Inc. | Fire protection for wood shingle roof |
HU200038B (en) | 1987-12-30 | 1990-03-28 | Kontakta Villamosszerelesi Val | Multipurpose plastic insert to non-rewireable connecting plugs |
US5186260A (en) * | 1991-04-25 | 1993-02-16 | Pem All Fire Extinguisher Corporation | Wire-sensored residential range hood fire extinguisher system |
HU678U (en) | 1994-03-02 | 1995-12-28 | Szilagyi | Device with permanent magnets for modifying properties of fluids |
HU214557B (en) | 1994-11-08 | 1998-04-28 | Total Walther Feuerschutz Gmbh | Fire-fighting equipment |
HU224146B1 (en) | 1998-09-09 | 2005-05-30 | Siemens Building Technologies Ag | Fire alarm and fire alarm system |
-
2008
- 2008-04-09 HU HU0800067U patent/HU3556U/en unknown
-
2009
- 2009-04-07 EP EP20090005107 patent/EP2108408A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191108909A (en) * | 1910-04-09 | 1912-02-08 | Wilhelm Graaff | Method and Device for Extinguishing Fires. |
US3603403A (en) * | 1969-08-20 | 1971-09-07 | Lewis Eng Co | Automatic fire extinguishing apparatus |
US4453155A (en) * | 1980-07-28 | 1984-06-05 | Raincloud, Inc. | Fire protection for wood shingle roof |
HU200038B (en) | 1987-12-30 | 1990-03-28 | Kontakta Villamosszerelesi Val | Multipurpose plastic insert to non-rewireable connecting plugs |
US5186260A (en) * | 1991-04-25 | 1993-02-16 | Pem All Fire Extinguisher Corporation | Wire-sensored residential range hood fire extinguisher system |
HU678U (en) | 1994-03-02 | 1995-12-28 | Szilagyi | Device with permanent magnets for modifying properties of fluids |
HU214557B (en) | 1994-11-08 | 1998-04-28 | Total Walther Feuerschutz Gmbh | Fire-fighting equipment |
HU224146B1 (en) | 1998-09-09 | 2005-05-30 | Siemens Building Technologies Ag | Fire alarm and fire alarm system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105788431A (en) * | 2016-05-24 | 2016-07-20 | 青岛亿和海丽安防科技有限公司 | Oil pan and fuel gas fire extinguishment demonstration device |
CN109513138A (en) * | 2018-12-26 | 2019-03-26 | 吉林省福瑞达水电设备工程有限公司 | A kind of power equipment automatic fire extinguisher |
CN113134202A (en) * | 2021-05-12 | 2021-07-20 | 钟星建设集团有限公司 | Building wisdom fire extinguishing system |
Also Published As
Publication number | Publication date |
---|---|
HU3556U (en) | 2009-03-30 |
HU0800067V0 (en) | 2008-05-28 |
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