Self-cleaning anti-scaling plate type heat exchanger capable of fulfilling online leakage monitoring function

The invention discloses a self-cleaning anti-scaling plate type heat exchanger capable of fulfilling an online leakage monitoring function, and belongs to the field of heat exchangers. The heat exchanger comprises a heat exchange plate, a sealing gasket, a front pillar, a fixed pressing plate, a movable pressing plate, an upper guide rod, a lower guide rod, a fastening bolt, a nut and a leakage monitoring alarm, and a heat exchange area of the heat exchange plate consists of a water-drop-shaped fluid disturbing unit. A variable-cross-section channel is formed in a side surface area of the water-drop-shaped fluid disturbing unit, so that the turbulence degree of a process medium is remarkably increased, the heat exchange efficiency of equipment is improved, meanwhile, strong fluid shear isformed in a narrow flow channel area, and a dirt layer deposited in the area close to the wall surface of the heat exchange plate is removed. By the leakage monitoring alarm, all-directional coverageof a fluid channel in a pl