| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchange tube in which the surface area coming into contact with a gas burning in a combustor is extended so that a heat exchanging rate can be improved.SOLUTION: The heat exchange tube comprises: an insertion body formed such that an aluminum material is subjected to press work so that three or more fan-shaped parts appear at the cross section thereof; a storage body for storing the insertion body therein and having an inner peripheral surface that comes into contact with an outer peripheral surface of the insertion body.SELECTED DRAWING: Figure 2 |
