Heat exchanger and method for manufacturing such a heat exchanger

Abstract

The heat exchanger (100) comprises a fluid circulation channel (C) extending longitudinally along a first axis (X‑X) and a plurality of planar layers (L) superimposed on each other along a second axis (Z‑Z). ). In order to improve the performance of the exchanger, each layer is composed of metal strips (B) such that the strips of the same layer all extend longitudinally in a direction perpendicular to the second axis in the plane of the relevant layer and are adjacent to each other without necessarily touching. In addition, each channel is jointly defined by the first layer, the second layer and the third layer, and the second layer is directly inserted between the first layer and the third layer along the second axis, so that each channel is defined by a surface of the first layer, A face of the third layer and edges of the second layer, extending parallel to the first axis and transverse to the plane of the second layer, are defined by strips of the second layer which are fused in the fusion zone Soldered to the first and third layers, these fused regions extend continuously along the entire length of the channel and are located on either side of the channel along the third axis (Y-Y).

Description

【Technical field】 [0001] The present invention relates to a heat exchanger. The invention also relates to a method for producing such a heat exchanger. 【Background technique】 [0002] The invention relates to both recuperator type heat exchangers and regenerator type heat exchangers. The main function of a recuperator type heat exchanger is to allow the transfer of thermal energy between a first fluid and a second fluid passing through the exchanger through the walls of the exchanger without any mixing between the two fluids. The two fluids implemented in this context may have different physical and chemical properties. The main function of a heat exchanger of the regenerator type is, on the one hand, to store in its walls the thermal energy provided by the fluid passing through it and, on the other hand, to subsequently return the thermal energy already stored in its walls to the device fluid. [0003] The performance of heat exchangers, whether recuperators or recupera...

AI Technical Summary

Problems solved by technology

[0005] These various exchangers, more generally commercially available heat exchangers, generally have a construction that has the disadvantage that their head loss increases when the flow velocity of the fluid through the cross-section decreases

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