Heat-exchanger duct with deformable wall, and heat exchanger made with such ducts

摘要

The invention relates to a heat-exchanger duct consisting of two walls 2, 3 fixed longitudinally to each other in a sealed manner at their two transverse ends 5, 6 and to a heat exchanger comprising at least one bundle of such ducts arranged in parallel fashion. At least one of the two walls of each duct is thin and deformable under the pressure of an internal fluid intended to exchange its heat with an external fluid bathing the duct, and has two extreme faces 7, 8 and a central part 9 providing the join between the two extreme faces of mean concave configuration, when seen from the outside of the duct. Rigid cooling fins 14 having a surface 15 capable of coming into contact with one of the extreme faces 8 of the duct can advantageously be applied against the said surface 15 of the fin under the pressure of the internal fluid, for example by means of a heat-conducting binder. IMAGE