Heat exchange unit

The utility model relates to the technical field of heat exchange machines, in particular to a heat exchange unit. According to the technical scheme, the device comprises a movable seat, a heat exchanger and a preheater, the preheater is installed on one side of the top of the movable seat, the heat exchanger is installed at the position, located on one side of the preheater, of the top of the movable seat, a heat exchange pipe A is installed in the middle of the interior of the preheater, a heat exchange pipe B is installed in the heat exchanger, and bases are installed at the four corners of the bottom of the movable seat; adjusting rods are connected to the four corners of the interior of the movable base in a sleeving mode, and handles are installed at the tops of the adjusting rods. The problems that an existing device cannot be conveniently moved, use convenience is poor, use practicability is poor, heat exchange media cannot be used for preheating inlet water, the media cannot be efficiently used for p