Method for producing multiple channels for use in a device for the exchange of solutes or heat between fluid flows and the respective device

摘要

Method for producing multiple channels for use in a device for the exchange of solutes or heat between at least a first and a second fluid flow, wherein at least one first and one second sheet (10; 10 ') are comprised, each sheet having a first end (10-1) and a second end (10-2); said method further comprising the steps of: - providing each of said first and second sheets (10; 10 ') with at least one profiled surface, - attaching said first and second sheets (10; 10') together with said profiled surfaces; facing each other, whereby the channels are shaped by the shape of the profiled surfaces, in which each of said first and second sheets has a first terminal part (11-1) and a second terminal part (11-2) , said first and second end portions (11-1, 11-2) having inclined intermediate surfaces (13) between each channel, said inclined intermediate surfaces inclining in a direction towards a middle portion of the respective sheet, wherein the inclined intermediate surfaces (13) are flush with an outer top surface (15) of the channels at the first end (10-1) and the second end (10-2), and wherein each sheet has a first lateral end portion (14-1) and one When the lateral end portion (14-2) opposite said first lateral end portion (14-1), said first and second lateral end portions have substantially planar surfaces forming external boundaries of the sheet in its longitudinal direction and said first lateral end portion (14-1) has a lateral extension greater than said second lateral terminal part (14-2).