TUBO PERMUTADOR PARA UM PERMUTADOR DE CALOR

摘要

The pipe (1) has a smooth outer surface (2) and a structured inner surface (3) having parallel ribs (7) running at an angle ( alpha ) of 90 degrees to the longitudinal axis (6) of the exchange pipe. The ribs have sloping flanges (8) and form channels (13) and cross running troughs (14). The middle longitudinal plane of the troughs runs at 90 degrees to the longitudinal axis of the exchange pipe. The troughs have a sine curve formed shape in their longitudinal cross-section and are formed with a micro roughness (16) upper surface (8,10,11) and have rounded ribbed (7) heads. The oppositely lying, neighbouring ribs of the flanges are connected to the channel soles (12) by rounded transitions (11).