Pressure-isolating heat exchange system of centralized heating heat supply pipe network

The utility model discloses a pressure-isolating heat exchange system of a centralized heating heat supply pipe network, which relates to the technical field of pressure-isolating heat exchange and comprises a pressure-isolating heat exchange system main body, the pressure-isolating heat exchange system main body comprises a water collecting tank, one side of the water collecting tank is provided with a pre-pressurizing mechanism, and the other side of the water collecting tank is provided with a pre-pressurizing mechanism. A second-type pressurizing mechanism and a heat exchange device are arranged on one side of the pre-pressurizing mechanism, and the heat exchange device comprises a heater. According to the utility model, by adopting the cooperation between the internal structures of the I-type parallel supercharging mechanism, water flow enters the first water separation tank through pre-supercharging, then enters the second circulating water pump and the third circulating water pump through the communica