Fluid flow pipe for heat exchanger has dividing wall between fluid flows which is non-planar to increase heat exchange

摘要

The fluid flow pipe (1) for a heat exchanger has two flow passages (2,3) separated by a dividing wall (4). The dividing wall is non-planar to increase heat exchange between the two passages. The dividing wall has multiple bulges or bends in the longitudinal direction of the pipe. The passage walls (7) can have similar inwardly bulged sections (9) .