Plate-type heat exchanging system

Provided is a board-like heat transfer system is including storage water tank, plate heat exchanger, a plurality of valves etc. . Switch over a plurality of valves from the control flow circulation circuit that comes by control, when hot water was produced in the plate heat exchanger work of heating, rivers were gone into and from the play of second interface from plate heat exchanger's the first interface, and work as the plate heat exchanger stop work to when giving whole board-like heat transfer system moisturizing, rivers are gone into and from first interface play from plate heat exchanger's second interface, this moment rivers to the plate heat exchanger counterflush, thereby prevent or delay quality of water in the speed of plate heat exchanger internal surface scale deposit, improve whole board-like heat transfer system's life and performance, and the simple structure of the system, safe and reliable, energy consumption characteristics such as good.