Energy-saving heat exchange device employing waste heat of air compressor to heat water

The utility model relates to an energy-saving heat exchange device employing waste heat of an air compressor to heat water, which particularly relates to a heat exchanger which produces life hot water or technology hot water by residual heat of the air compressor. The utility model comprises a brazing sheet type heat exchanger, a water tank, a water pump and a control system, an oil return pipe of a wind cooling radiator of the air compressor is connected with the brazing sheet type heat exchanger in series, the other side of the heat exchanger is provided with the water pump and the water tank in which a sensor is arranged, and a controller is installed on the water tank. The utility model has great advantages of the aspects of air compressor afterheat utilization and air compressor operating cost reduction. The operating cost of the air compressor is reduced, the operating service life of the air compressor is improved, and the production cost of the hot water is saved.