Heat supply pipe network flow adjusting method

The invention discloses a heat supply pipe network flow adjusting method. The heat supply pipe network flow adjusting method comprises the following steps that a heat source pipe network branch line is preliminarily adjusted through a manual valve mechanism, an electric adjusting valve, a backwater pressure pump and other devices on a high-temperature water pipeline of a heating station; the primary network flow of the heating station distributed in the actual heat supply area is calculated; by arranging a plate heat exchanger and flushing the plate heat exchanger, balance fine adjustment is conducted on the station with the high return water temperature of the heating station; the opening degree of a valve in a valve well outside a wharf-sale station is controlled to adjust the return water temperature of the wharf-sale heating station; the two-network trend of each area is determined, and the return water temperature is adjusted by controlling a manual valve mechanism to increase and decrease the flow; and