Wound tube type heat exchanger

The utility model discloses a coiled tube type heat exchanger, and particularly relates to the field of heat recovery, the coiled tube type heat exchanger comprises a heat exchanger main body, the heat exchanger main body is composed of a heat exchange shell, an upper tube box cover and a lower tube box cover, and the upper tube box cover and the lower tube box cover are arranged in an arc state in the main view direction; the two heat exchange assemblies are located in the heat exchange shell and arranged on the two sides of the transverse central axis in the main view direction of the heat exchange shell in a mirror image state, and each heat exchange assembly is composed of two sets of heat exchange pipes, two sets of supporting plates and two sealing plates. During actual use, heat exchange can be conveniently carried out on a hot substance solution in the heat exchange shell through the two heat exchange assemblies, the heat exchange efficiency of the hot substance solution in the heat exchange shell can