▎ 摘　　要

NOVELTY - The utility model claims a heat exchange device technology field, claims a heat exchange device, the utility model comprises a metal shell body, graphene filling block, high temperature liquid inlet, high temperature liquid discharging port, the graphene filling block is filled in the metal shell body, the upper end surface of the metal shell body is welded and fixed with an end cover, the upper flaring head is pressed on the upper end of the graphene filling block, the upper pressing cover is pressed on the upper flaring pipe head, the end cover and the upper pressing sheet are connected by a bolt, the bolt is sleeved with a pressing spring, the upper end of the pressing screw thread is connected with a nut. The utility model makes the high temperature liquid flow enter into the high temperature pipe cavity from the upper flaring pipe head and continuously downwards until it is discharged, the low temperature liquid flow enters from the high temperature liquid inlet and is filled into the low temperature cavity and enters into the low temperature pipe cavity and is discharged from the high temperature liquid discharge port, so as to make the cold liquid and the hot liquid quickly realize heat exchange, the graphene filling block is convenient for processing opening of the graphene filling block by the combined way of sectional filling.