Split type constant temperature supply system of campus hot water

The utility model discloses a split type constant temperature supply system of campus hot water, include effluent water sump and the sewage pipe of being connected with the effluent water sump, be equipped with the multistage heat exchanger who is used for the heat exchange in the sewage pipe, its characterized in that: still include cold water conduit, cold water conduit carries out temperature exchange back through multistage heat exchanger, and one end is connected with the holding water box top, is connected with the cold water conduit other end bottom the holding water box, holding water box is connected with the heat supply heat pump, the heat supply heat pump is equipped with heating device, heat supply heat pump rear portion is connected with a plurality of water gauges, and every water gauge is connected with card reader and delivery port, be equipped with total accuse valve on the water pipe that heat supply heat pump and water gauge are connected, every water gauge department all is equipped with s