The present application relates to the technical fields of
chemical energy saving and equipment
corrosion prevention, and particularly relates to a heat exchange device, which comprises a triple
heat exchanger, a steam pipeline connected to an inlet of a shell side of the triple
heat exchanger, a tube-and-shell
heat exchanger, and an
ethylbenzene atomizer, wherein an outlet of a tube side of the triple heat exchanger is connected to an inlet of a tube side of the tube-and-shell heat exchanger, an outlet of the tube side of the tube-and-shell heat exchanger is connected to a circulating
water cooling system, an inlet of the shell side of the tube-and-shell heat exchanger is connected to an
ethylbenzene feeding pipeline, an outlet of the shell side of the tube-and-shell heat exchanger is connected to an
ethylbenzene discharging pipeline, the other end of the ethylbenzene discharging pipeline is connected to the steam pipeline, and the other end of the ethylbenzene discharging pipeline is connected to the ethylbenzene atomizer, and the present application has the following beneficial effects: the problems of the triple heat exchanger inlet being prone to
corrosion and the equipment being also subjected to
cavitation corrosion in the prior art are solved, the steam and circulating
water consumption is reduced, the comprehensive utilization efficiency of
heat energy is improved, and the production cost is reduced.