Equipment for concentrating and analyzing components contained in a flowing medium and analyzing method
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United States of America Patent
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Apr 2, 2013
Grant Date -
Jul 7, 2011
app pub date -
Jun 1, 2009
filing date -
Jun 2, 2008
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Abstract
The invention relates to equipment for concentrating and analyzing components contained in a flowing medium, and an analyzing method applying said equipment. The analyzing equipment comprises a concentrator, including a porous sorbent bed, in which components can be absorbed or adsorbed from the medium flow, said bed being electroconductive, so that components can be desorbed to a washing flow by heating the bed with electric current; and to an analyzer defining the desorbed components, said analyzer being for instance a gas detector. According to the invention, the sorbent bed is in the flowing direction widened towards its outlet end, having for example the shape of a truncated cone. By means of the invention, the temperature in the sorbent bed is equalized by transferring heat in the washing flow towards the bed outlet end, which end receives a weaker heating effect per unit of volume, owing to the widening shape of the bed.
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