Supporting structure for heat exchange tube

A supporting structure for a heat exchange tube comprises a filler strip (1) and at least two tube hoops (2), and the filler strip (1) is provided with a first surface (11) extending in the length direction of the filler strip (1); each pipe hoop (2) is provided with a concave portion (20) used for being matched with the peripheral wall of a heat exchange pipe (3), the concave portions (20) are opposite to the first surface (11) of the filler strip (1), each pipe hoop (2) is further provided with a first supporting foot (21) and a second supporting foot (22), the first supporting foot (21) and the second supporting foot (22) are located on the two sides of the concave portions (20) of the pipe hoops (2), and the pipe hoops (2) are restrained on the filler strip (1) through the first supporting foot and the second supporting foot of the pipe hoops (2) and distributed in the length direction of the filler strip (1). A convex part (24) is arranged on the outer side wall of at least the first supporting leg (21)