Heat exchange plate with axial variable cross-section streamline rib type structure

The utility model discloses a heat exchange plate with an axial variable cross-section streamline rib type structure, and belongs to the technical field of heat exchangers. The heat exchange plate comprises a base plate and a plurality of streamline fins arranged on the surface of the base plate line by line in the fluid flowing direction. The streamline fin is subjected to center shrinkage on the axial cross section, so that a variable cross section structure is realized on the axial cross section. The front edges of the fins are shrunk inwards, so that vertical impact of incoming flow on the fins is reduced, the size of a flow stagnation area is reduced, the phenomenon that local resistance of the area is large is improved, and pressure drop loss of a whole flow channel is reduced; meanwhile, the heat exchange area of the surfaces of the upper substrate and the lower substrate can be increased through the inward shrinkage structure of the axial section, and the heat exchange capacity of the whole runner is