HEAT EXCHANGER CONSIDERED TO PREVENT EROSION OF END OF HEAT TRANSFER TUBE AND TO ENHANCE REPLACING EFFICIENCY OF TUBE

摘要

PURPOSE: To reduce generation of a vortex by allowing an end of a heat transfer tube to protrude in a predetermined length from a tube branch to be mounted, mounting a split inlet tube branch thereat through a trunking tube, a cooling tube for a joint to double the branch, and guiding water to the part by an inlet tube plate. ;CONSTITUTION: A cooling tube 4' of a condenser 20 so protrudes 4-5cm of suitable length to be mounted at a tube plate 3 as to facilitate a branch tube mounting operation. An inlet tube plate 1 is mounted thereat through a tube plate connecting leg 2 or a trunking tube 5 and a cooling tube 6 for a joint. Thus, a protrusion on a surface of the plate 1 in contact with introduced fluid is eliminated. Further, an inlet is formed in a streamline shape thereby to remove one of causes for generating a vortex. Since a length of a concentric erosion part from the end of the tube is shortened due to the reduction in a vortex generation source, it can be moved to a position of the tube 5 between the plate 3 and the plate 1. Further, since the length of the protrusion of a heat transfer tube 4 is long, a branch tube is facilitated.;COPYRIGHT: (C)1993,JPO&Japio