Heat exchanger, fusion reactor and neutral particle injection heating device

摘要

PROBLEM TO BE SOLVED: To resolve such the problem that, as the number of usage and operation times increases, a flaw such as a crack is generated in a heat receiving plate due to metal fatigue and the flaw develops to a heat transfer enhanced tube via a metallurgical junction.SOLUTION: A heat exchanger 20 installed with a heat transfer enhanced tube 1 at an inner face, outer face or both inner and outer faces of a heat receiving plate 2 with a slit structure via a metallurgical junction 3 is formed with a non-junction region 4 between the heat transfer enhanced tube 1 and the heat receiving plate 2.SELECTED DRAWING: Figure 1