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AssigneeEnvironics Oy
InventorsJanne Petteri Pitkanen, Tero Tapio Hannola, Terhi Marjukka Mattila
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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.
A device for concentrating components contained in a flowing medium, comprising axial inlet and outlet ends of the flow, as well as a porous sorbent bed therebetween, in which sorbent bed components can be absorbed or adsorbed from a medium flow conducted through the bed, and which bed is electroconductive, so that components can be desorbed to a washing flow conducted through the bed by heating the bed with an axially directed electric current, wherein the sorbent bed is between its inlet and outlet ends widening in the direction of the washing flow.
Equipment for analyzing components contained in a flowing medium, said equipment comprising a porous sorbent bed, in which components can be absorbed or adsorbed from a medium flow conducted through the bed, and which bed is electroconductive, so that components can be desorbed to a washing flow conducted by heating the bed by electric current;
A method for analyzing components contained in a flowing medium, wherein method components are absorbed or adsorbed from a medium flow to a porous, electroconductive sorbent bed and further desorbed from the sorbent bed to a washing flow by heating the bed by electric current;
Dependencies are inferred from the claim text.