HEAT EXCHANGING TUBE

摘要

PURPOSE: A heat-exchange tube is provided to prevent corrosions of a tube bundle by applying sacrificial anode function to an under bar and a coil spring. CONSTITUTION: A heat-exchange tube comprises a tube bundle(11), a vortex forming member(13) and a condensate discharge member(15). An inside tube bundle is formed to circulate fluids. The vortex forming member is arranged to a longitudinal direction inside the tube bundle and forms a flow of the fluids into the vortex. The condensate discharge member is inserted into a space between the vortex forming member and the tube bundle in the longitudinal direction. The condensate discharge member comprises a condensate outlet port for discharging the condensate in a part, in which the condensate is contacted with an inner surface of the tube bundle. The vortex forming member is a coil spring which has a similar-size diameter with the diameter of the tube bundle of 90~98%. The condensate discharge member is a under bar, which has a thickness as much as the diameter of the tube bundle of 2~10%.