Device for protecting premises in particular a tunnel against fire
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A62C-037/08
B05B-007/06
B05B-007/02
출원번호
UP-0495694
(2002-11-20)
등록번호
US-7562716
(2009-07-29)
우선권정보
FR-01 15113(2001-11-22)
국제출원번호
PCT/FR02/003967
(2002-11-20)
§371/§102 date
20040927
(20040927)
국제공개번호
WO03/043701
(2003-05-30)
발명자
/ 주소
Lecanu, Pierre
Lebreton, Jean
대리인 / 주소
Drinker, Biddle & Reath, LLP
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
The invention concerns a device for protecting premises in particular a tunnel against fire, consisting of a circular housing open at its two ends and deisgned to be fixed in the upper part of the premises to be protected such that its median axis (XX') is substantially vertical, said housing compri
The invention concerns a device for protecting premises in particular a tunnel against fire, consisting of a circular housing open at its two ends and deisgned to be fixed in the upper part of the premises to be protected such that its median axis (XX') is substantially vertical, said housing comprising a substantially cylindrical lower part and an upper part substantially tapered in the shape of a bell, and containing part of vacuum-producing means capable of accelerating air circulation in and around the housing and spray means capable of injecting fine water droplets in the resulting circulating air.
대표청구항▼
The invention claimed is: 1. A process for protecting premises, in particular a tunnel, against fire, by the injection of fine droplets of water into the air circulating near a fire so that they are drawn into the flames and vaporize whereby the fire dies out because of a shortage of oxygen, compri
The invention claimed is: 1. A process for protecting premises, in particular a tunnel, against fire, by the injection of fine droplets of water into the air circulating near a fire so that they are drawn into the flames and vaporize whereby the fire dies out because of a shortage of oxygen, comprising: fixing a housing generated by revolution which is open at its two ends in position at the upper portion of the premises to be protected in such a manner that its median axis is substantially vertical, the housing comprising a substantially cylindrical lower portion and an upper portion narrowed substantially in the shape of a bell; channeling and accelerating the circulation of air generated by the fire in and around the housing using a disc which is centered on the median axis of die housing, is mounted substantially perpendicularly to that axis and is driven in rotation at high speed about that axis by a driving motor constituted by an action or reaction water turbine such as a water turbine of the Pelton type or a water turbine of the Francis type, the disc being equipped on its upper face with a series of blades that have a variable cross-section and that extend into the narrowed upper portion of the housing in such a manner as to create a partial vacuum and to enable air to be sucked in from the upper portion of the housing towards the lower portion thereof; and injecting fine droplets of water into the air thus set in accelerated circulation using a cylindrical chamber mounted securely on the rotary disc in such a manner as to recover at least some of the water used in the turbine, the chamber being equipped on its peripheral wall with calibrated orifices permitting the injection of the fine droplets of water into the air set in circulation. 2. A process according to claim 1, wherein the housing is equipped with a perforated fixed cylinder mounted opposite the orifices of the centrifugal chamber in order to facilitate the generation of the droplets of water. 3. A device for protecting premises, in particular a tunnel, against fire, comprising: a housing generated by revolution which is open at its two ends and which is to be fixed in position at the upper portion of the premises to be protected in such a manner that its median axis (xx') is substantially vertical, the housing comprising a substantially cylindrical lower portion and an upper portion narrowed substantially in the shape of a bell; the housing containing vacuum-producing means capable of accelerating the circulation of air in and around the housing and constituted by a disc which is centered on the median axis (xx') of the housing, is mounted substantially perpendicularly to that axis and is driven in rotation at high speed about that axis by a driving motor constituted by an action or reaction water turbine such as a water turbine of the Pelton type or a water turbine of the Francis type; the disc being equipped on its upper face with a series of blades that have a variable cross-section and that extend into the narrowed upper portion of the housing in such a manner as to create a partial vacuum and to enable air to be sucked in from the upper portion of the housing towards the lower portion thereof; and atomizing means capable of injecting fine droplets of water into the air thus set in circulation and constituted by a cylindrical chamber mounted securely on the rotary disc in such a manner as to recover at least some of the water used in the turbine, the chamber being equipped on its peripheral wall with calibrated orifices permitting the injection of fine droplets of water into the air set in circulation. 4. A device according to claim 3, wherein the housing is equipped with a perforated fixed cylinder mounted opposite the orifices of the centrifugal chamber in order to facilitate the generation of the droplets of water. 5. A device for protecting premises, in particular a tunnel, against fire, comprising: a housing generated by revolution about an axis that is open at its two ends and that is to be fixed in position at the upper portion of the premises to be protected in such a manner that the axis of the housing is substantially vertical, the housing comprising a substantially cylindrical portion and a portion narrowed substantially in the shape of a bell, the housing arranged in use to be fixed in position at an upper portion of the premises to be protected in such a manner that the axis of the housing is substantially vertical, the substantially cylindrical portion is a lower portion, and the narrowed portion is an upper portion, the housing containing a vacuum-producer comprising a disc that is centered on the axis of the housing, is mounted substantially perpendicularly to that axis and in use is driven in rotation at high speed about that axis by a driving motor comprising a water turbine of the Pelton type or a water turbine of the Francis type, the disc being equipped on its face towards the narrowed upper portion of the housing with a series of blades that have a variable cross-section and that extend into the narrowed upper portion of the housing in such a manner as to create a partial vacuum in the narrowed portion of the housing enabling air to be sucked in from the upper portion of the housing towards the lower portion thereof and accelerating the circulation of air in through the housing from one open end to the other and around the housing, and an atomizer comprising a cylindrical chamber mounted securely on the rotary disc in such a manner as to recover at least some of the water used in the turbine, the chamber being equipped on its peripheral wall with calibrated orifices permitting the injection of fine droplets of water into the air thus set in accelerated circulation. 6. A device according to claim 5, further comprising a perforated fixed cylinder mounted opposite the orifices of the centrifugal chamber in order to facilitate the generation of the droplets of water.
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