Heat exchanger fin with mistake-proof structure

The utility model discloses a heat exchanger fin with a mistake-proof structure, and relates to the technical field of heat exchanger fins. The heat exchanger piece with the mistake-proof structure comprises a base, a fixed clamping plate and a supporting column are welded to the top of the base, an upper guide rod is welded to the adjacent side walls of the fixed clamping plate and the supporting column, a movable clamping plate is slidably installed on the upper guide rod, and a rolling wheel is rotatably installed at the top of the movable clamping plate; the rolling wheel is attached to the top of the upper guide rod, a hole is formed in the movable clamping plate, and a lower guide rod is welded to the outer wall of one side of the fixed clamping plate. The device can effectively avoid oil damage and influence on production caused by wrong installation, can also facilitate disassembly and cleaning of heat exchanger sheets by workers, can prevent the situation that hazardous chemicals are discharged befor