Heat exchanger comprising plastic tubes and its application as an air-cooled atmospheric cooler

摘要

1. An exchanger for exchanging heat between a first fluid and at least a second fluid, of the type comprising : a) a horizontal battery (13) of rectilinear tubes of great length interconnected at intervals by spacer devices and in which the first fluid flows, b) a support structure for said battery, c) a first connection box (20) to which said tubes are connected in a sealed manner at one of their ends, and which is divided by at least one partition wall (24) into at least an inlet chamber (25) and, an outlet chamber (27) for the first fluid, said connection box (20) being fixed on said support structure, and d) a second connection box, (21) to which there are connected in a sealed manner said tubes at their opposite ends, said second box (21) being mounted to be movable relative to said support structure, said exchanger being characterized in that said support structure comprises at least two horizontal beams (31) parallel to the battery of tubes and disposed on each side of said battery and on which bear the first connection box (20), the spacer devices (19) and the second connection box (21), the spacer devices (19) being flexible in the direction of the tubes and bearing on said beams (31) through sliding shoes (52) and the second connection box (21) being provided on each side with rotatable shaft sections (34) which are horizontal and orthogonal to the tubes and journalled in bearings (35) which are mounted on said beams (31) to be movable in the direction of the tubes.