[특허]Inert gas fire extinguisher for reducing the risk and for extinguishing fires in a protected space

AMRONA AG

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특허 상세정보

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Inert gas fire extinguisher for reducing the risk and for extinguishing fires in a protected space

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A62C-035/00 A62C-002/00 A62C-003/00 A62C-003/06 A62C-037/00 A62C-099/00 A62C-035/15 A62C-035/02 A62C-035/68
출원번호	US-0998300 (2009-10-07)
등록번호	US-9079054 (2015-07-14)
우선권정보	EP-08166037 (2008-10-07)
국제출원번호	PCT/EP2009/063019 (2009-10-07)
§371/§102 date	20110705 (20110705)
국제공개번호	WO2010/040771 (2010-04-15)
발명자 / 주소	Claessen, Thomas Wagner, Ernst-Werner
출원인 / 주소	AMRONA AG
대리인 / 주소	Edwards, Esq., Jean C.
인용정보	피인용 횟수 : 1 인용 특허 : 5

초록
▼

The invention relates to an inert gas fire-extinguishing system for reducing the risk of and extinguishing fires in a protected room. So as to have the inerting of the protected room ensue according to different variable sequences of events, the inert gas fire-extinguishing system includes a pressure-reducing device having at least two parallel branches, wherein each parallel branch has a pressure-reducing mechanism. Each parallel branch is connectable to a high-pressure collecting line and a low-pressure extinguishing line via a controllable valve, wher...

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청구항
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1. An inert gas fire-extinguishing system which reduces a risk of and extinguishes fires in a protected room, the inert gas fire-extinguishing system comprising: at least one high-pressure gas tank in which an oxygen-displacing gas is stored under high pressure, wherein the high-pressure gas tank is connected to a collecting line via a quick-release valve, andan extinguishing line connected on one side to the collecting line via a pressure-reducing device and on the other side to extinguishing nozzles,wherein the pressure-reducing device includes at least two parallel branches, each having a pressure regulator, wherein each parallel branch is connected to the collecting line and the extinguishing line via a controllable valve,wherein each pressure regulator is configured to reduce a high input pressure to a low output pressure according to a known pressure-reducing characteristic curve,the inert gas fire-extinguishing system further comprising:a control device to automatically effect, based on measurement by a sensor of at least one fire characteristic in the protect room, a multi-stage inerting process in which the oxygen content in the protected room is first reduced to a first lowered level and then further reduced to another preset lowered level or successively to multiple preset lowered levels,wherein the control device is configured to control the valves of the pressure-reducing device to set the lowered level such that the oxygen content in the protected room reduces in accordance with a preset inerting curve,wherein the control device is configured to control the valves of the pressure-reducing device to reduce the oxygen content to the first lowered level such that only one first parallel branch of the at least two parallel branches is connected to the collecting line and the extinguishing line, andwherein the control device is further configured to control the valves of the pressure-reducing device to further reduce the oxygen content to a second lowered level such that only one second parallel branch of the at least two parallel branches is connected to the collecting line and the extinguishing line, andwherein the pressure-reducing characteristic curve of the pressure regulator arranged in the first parallel branch differs from the pressure-reducing characteristic curve of the pressure regulator arranged in the second parallel branch,such that the reduction of the oxygen content in the protected room from the first lowered level to the other preset lowered level is performed as needed according to a desired inerting curve, which is a function of temporal changing of the oxygen content such that the sequence of events may be varied according to need by controlling the valves, of the pressure-reducing device, respectively disposed in each of the parallel branches. 2. The inert gas fire-extinguishing system according to claim 1, wherein the control device is configured to control the valves of the pressure-reducing device to reduce the oxygen content to the first lowered level such that only one first parallel branch of the at least two parallel branches is connected to the collecting line and the extinguishing line, and wherein the control device is further configured to control the valves of the pressure-reducing device to further reduce the oxygen content to the second lowered level such that the first parallel branch and the second parallel branch of the at least two parallel branches are connected to the collecting line and the extinguishing line. 3. The inert gas fire-extinguishing system according to claim 1, wherein the pressure-reducing device includes at least three parallel branches each having a pressure regulator, wherein each parallel branch is connected to the collecting line and the extinguishing line via a controllable valve, and wherein each pressure regulator is configured to reduce a high input pressure to a low output pressure according to a preset pressure-reducing characteristic curve, andwherein the control device is configured to control the valves of the pressure-reducing device to reduce the oxygen content from the second lowered level to a third lowered level such that only one third parallel branch of the at least three parallel branches is connected to the collecting line and the extinguishing line. 4. The inert gas fire-extinguishing system according to claim 1, wherein at least some of the pressure regulator exhibit a pressure-reducing characteristic curve with which, irrespective of a set input pressure, the output pressure does not exceed a predefined pressure value. 5. The inert gas fire-extinguishing system according to claim 1, wherein at least some of the pressure regulator exhibit a pressure-reducing characteristic curve with which the output pressure is proportionally dependent on the input pressure. 6. The inert gas fire-extinguishing system according to claim 1, wherein at least some of the pressure regulator exhibit a pressure-reducing characteristic curve with which, irrespective of a set input pressure, the output pressure assumes a predefinable constant pressure value over at least a specific range of pressure. 7. The inert gas fire-extinguishing system according to claim 1, further comprising: at least two high-pressure gas tanks which are connected to a collecting line via a quick-release valve, wherein a parallel branch having a pressure regulator is allocated to each high-pressure gas tank such that when the quick-release valve of one high-pressure gas tank of the at least two high-pressure gas tanks-opens, the valves of the pressure-reducing device are automatically controlled such that only the parallel branch associated with the one high-pressure gas tank is connected to the extinguishing line and the collecting line.

이 특허에 인용된 특허 (5)

이 특허를 인용한 특허 피인용횟수: 1

Huelsen, Gerd; Rupp, Benno. Method and system for reducing noise and room air overpressure on discharge of a gas extinguisher system. USP2018029889326.

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Inert gas fire extinguisher for reducing the risk and for extinguishing fires in a protected space

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Inert gas fire extinguisher for reducing the risk and for extinguishing fires in a protected space

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이 특허에 인용된 특허 (5)

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