Heat exchange tube and heat exchanger

The utility model relates to a heat exchange tube and a heat exchanger, the heat exchange tube comprises a tube body and further comprises a twisted belt inserted in the tube body, the twisted belt twists and extends in the axis direction of the tube body, and a plurality of pitch sections are formed; the twisted belt is provided with a first surface and a second surface which are opposite to each other, and the first surface of each pitch section is provided with a plurality of first convex hulls and a plurality of first concave pits which are arranged at intervals. The heat transfer resistance of the heat exchange tube can be further reduced, and the heat exchange coefficient of the heat exchange tube is increased. 本申请涉及一种换热管和换热器，换热管包括管体，还包括插设于所述管体内的扭曲带，所述扭曲带沿所述管体的轴线方向扭曲延伸，并形成多个节距段；所述扭曲带具有相背的第一表面和第二表面，每个所述节距段的所述第一表面上均设有间隔排列的多个第一凸包和多个第一凹坑。本申请可进一步减小换热管的传热热阻，提升其换热系数。