Heat exchange unit convenient to maintain

The utility model relates to the field of heat exchangers, in particular to a heat exchange unit convenient to maintain, which comprises a rack and a plate, the rack is provided with a fixing device for fixing the plate, the rack is slidably connected with a plurality of first abutting sheets and second abutting sheets, and the first abutting sheets and the second abutting sheets are alternately arranged between the racks. The first abutting piece and the second abutting piece extend out of the plate piece, permanent magnets are arranged at the two ends of the first abutting piece, and electromagnets are arranged at the two ends of the second abutting piece. When the heat exchanger goes wrong, a user relieves fixation of the fixing device and starts the electromagnet, the permanent magnets and the electromagnet are the same in magnetic pole and repel each other, the plates move in the direction away from each other, maintenance personnel can check whether the plates are damaged or not and replace or repair th