SYSTEM AND METHOD FOR EXTRACTION OF SMOKE FROM ROAD TUNNELS
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United States of America Patent
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Dec 5, 2014
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Dec 6, 2013
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Abstract
The invention concerns a smoke extraction module (1), a smoke extraction system (20) and a method for using such a system which enables extracting of smoke (6) from tunnels, in particular large road tunnels. The module comprises a duct (2) for transportation of smoke, a suspension means (10) which is at least indirectly connected to the duct, thereby enabling suspended convection between the duct and the tunnel wall or tunnel ceiling (4) and a detachment mechanism (5), which, when activated, is arranged to detach the duct from the suspension means such that a displacement of the duct is enabled.
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