Air-guiding component
View Patent ↗The invention relates to an air-guiding component ( 1 ) for a pipe system, in particular for a pipe system for gaseous media preferably used in an aspirating fire detection and/or air-monitoring system. The air-guiding component ( 1 ) comprises a housing ( 7 ) having a gas inlet ( 12 a ) and a gas outlet ( 12 b ), wherein the gas inlet ( 12 a ) and the gas outlet ( 12 b ) are fluidically connected or connectable to the pipe system in order to form a flow path from the gas inlet ( 12 a ) to the gas outlet ( 12 b ) in the interior of the housing. A connection region with a port ( 6 ) is also provided for fluidically connecting, as needed or optionally, the housing interior to a maintenance/cleaning device.
1. A filtering air guide for an intake pipe system for gaseous media in an aspirating fire-detection or air-monitoring system ( 30 ), the air guide including a housing ( 7 ) having an interior and comprising:
(a) a main housing ( 13 ) forming a component part of the housing ( 7 ) and having an opening ( 8 ), a gas inlet ( 12 a ) and a gas outlet ( 12 b ) and configured to receive a filter ( 5 ) interposed in a gas flow path between the gas inlet ( 12 a ) and the gas outlet ( 12 b ); and
(b) a first component ( 10 ) forming a replaceable housing cover ( 14 ) that is an adapter part detachably connectable to the main housing ( 13 ) and closing the opening of the main housing ( 13 ) when the first component is detachably connected to the main housing, the first component ( 10 ) having
(i) a fitting ( 6 ) with an opening into the housing interior through a wall region ( 11 ) of the housing cover ( 14 ), the fitting being connectable to a maintenance/cleaning device ( 22 ), and
(ii) at least one shutoff element ( 16 ) projecting from the first component and positioned to register with the gas inlet ( 12 a ) or the gas outlet ( 12 b ) and reduce the effective cross section of the gas flow path when the first component is detachably connected to the main housing.
2. A filtering air guide in accordance with claim 1 wherein the at least one shutoff element ( 16 ) is formed as a plate projecting from the first component.
3. A filtering air guide in accordance with claim 2 wherein the first component ( 10 ) has two shutoff elements formed as plates both projecting from the first component, one plate positioned to register with the gas inlet ( 12 a ) and reduce the effective cross section of the gas flow path through the gas inlet ( 12 a ) when the first component is detachably connected to the main housing and the other plate positioned to register with the gas outlet ( 12 b ) and reduce the effective cross section of the gas flow path through the gas outlet ( 12 b ) when the first component is detachably connected to the main housing.
4. A filtering air guide in accordance with claim 1 and further comprising a second component ( 21 ) forming an alternative, replaceable housing cover ( 14 ) detachably connectable to the main housing ( 13 ) and closing the opening of the main housing ( 13 ) when the second component is detachably connected to the main housing, the second component ( 10 ) having a wall region without a fitting and forming a continuously closed housing cover.
5. A kit for cleaning or maintaining a filtering air guide for an intake pipe system for gaseous media in an aspirating fire-detection or air-monitoring system ( 30 ), the air guide including a housing ( 7 ) having an interior and the kit comprising:
(a) a maintenance/cleaning device ( 22 ) comprising a partial vacuum source or overpressure source,
(b) a main housing ( 13 ) forming a component part of the housing ( 7 ) and having an opening ( 8 ), a gas inlet ( 12 a ) and a gas outlet ( 12 b ) and configured to receive a filter ( 5 ) interposed in a gas flow path between the gas inlet ( 12 a ) and the gas outlet ( 12 b ); and
(c) a first component ( 10 ) forming a replaceable housing cover ( 14 ) that is an adapter part detachably connectable to the main housing ( 13 ) and closing the opening of the main housing ( 13 ) when the first component is detachably connected to the main housing, the first component ( 10 ) having
(i) a fitting ( 6 ) with an opening into the housing interior through a wall region ( 11 ) of the housing cover ( 14 ), the fitting being connectable to the maintenance/cleaning device ( 22 ), and
(ii) at least one shutoff element ( 16 ) positioned to register with the gas inlet ( 12 a ) or the gas outlet ( 12 b ) and reduce the effective cross section of the gas flow path when the first component is detachably connected to the main housing.
6. A kit in accordance with claim 5 and further comprising a second component ( 21 ) forming an alternative, replaceable housing cover ( 14 ) detachably connectable to the main housing ( 13 ) and closing the opening of the main housing ( 13 ) when the second component is detachably connected to the main housing, the second component ( 10 ) having a wall region without a fitting and forming a continuously closed housing cover.
7. A kit in accordance with claim 5 wherein the maintenance/cleaning device ( 22 ) comprises a vacuum cleaner or vacuum pump as partial vacuum source or a compressed air container or a compressor as an overpressure source.