| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger having a horizontal shell-and-tube structure, where a lower temperature heating medium being a temperature rise object may flow into the heat exchanger in a vapor-liquid mixed phase state, and the lower temperature heating medium is reliably vaporized in the heat exchanger, whereby the lower temperature heating medium sent out from the heat exchanger can be reliably in a vapor phase state.SOLUTION: A heating gas advection space part that is a space in an outer barrel 3 where a heating gas w flows in an advection space 50 of a lower temperature heating medium, includes a contact area expanding means 101 for expanding a contact area between the lower temperature heating medium c in a liquid phase state and the heating gas w. |
