Segmented optimization calculation method for central pipe of middle-deep buried pipe

The invention discloses a segmented optimization calculation method for a central pipe of a middle-deep buried pipe. The method comprises the following steps: S1, acquiring and inputting basic parameters required by optimization calculation; s2, establishing a heat transfer calculation model and an economical efficiency calculation model of the medium-deep buried pipe, and detecting the setting rationality of the basic parameters in the S1; s3, inputting central pipe optimization calculation parameters and a constraint condition set; s4, rationality detection is carried out on conditions related to thermal conditions in the constraint conditions; s5, performing dual-objective optimization calculation according to the basic parameters and the optimization calculation parameters; and S6, based on a double-objective optimization calculation result, inputting a weight ratio of thermal performance to economic performance, drawing a Pareto frontier diagram, and giving an optimization result. According to the method