SUPPORT FOR A HELICAL COIL INSERTED IN A HEAT EXCHANGER TUBE

摘要

A helical coil is supported inside a heat exchanger tube by at least one inside protrusion on the inside wall of the tube, the at least one protrusion supports the helical coil on a contact point of the helical coil against downwards movement in the tube and supports the helical coil on the end point of the helical coil against rotational movement in a first rotational direction relative to the tube.