▎ 摘　　要

NOVELTY - The utility model relates to the mechanical field, specifically claims a graphite heat exchanger. the inner wall of the hole reinforcing hole graphite block heat exchanger, comprising graphite block, graphite block is opened with multiple transverse channel and multiple vertical passage and transverse passage, two sides of longitudinal channel are provided with a hole, the transverse channel. inner wall of the longitudinal channel is covered with a layer of basalt fibre layer; inner wall of the transverse channel is equipped with strip groove of plurality of equidistantly arranged, equal thickness of the basalt fibre layer; the basalt fibre layer is coated with a graphene coating graphene coating strip groove is filled. basalt fibre layer has a relatively large strength, set in the graphite block passage of the basalt fibre layer overcomes the defect of low pressive strength of graphite material, so that it can be suitable for high pressure environment and prolong the service life of the graphite block.