The plate heat exchange station converts the heat from the primary network into automatic and continuous conversion to the domestic and heating water required by the user. That is, the hot water (or steam) enters the plate heat exchanger from the primary side inlet of the unit for heat exchange, and then flows out from the primary outlet of the machine port; the secondary side return water passes through the filter to remove the dirt, and then enters through the secondary side circulating water pump. The plate heat exchanger performs heat exchange to produce hot water at different temperatures, such as heating, air conditioning, floor heating or domestic water to meet the needs of users. The plate heat exchanger unit is divided into water-water constant temperature heat according to thermal conditions. Water unit and steam-water constant temperature domestic hot water unit.