HEAT EXCHANGER CONSTRUCTION

摘要

There is provided a heat-exchange element of generally cylindrical configuration, capable of being manufactured from a single sheet of metal. The element includes a central portion with accordionated walls defining outwardly open V-shaped channels, between which are located inwardly open V-shaped channels. One end of the element is a female end for receiving a cylindrical pipe, the female end being defined by a plurality of first segments which merge with the apical portions of the outwardly open V-shaped channels. This leaves radially outwardly projecting ridges, the margins of which-are made gas-tight. The other end provides a male end adapted to be received within the end of a cylindrical member, the male end being defined by second segments, each of which is continuous with and merges with the apical portion of one of the inwardly open V-shaped channels. The apical portions of the outwardly open V-shaped channels become, in the latter end portion, a radially inwardly projecting ridge of which the end margins are rendered substantially gas-tight.