A STUDY OF OPTIMIZING OPERATIONS OF THE BURIED OIL PIPELINES FROM DAQING TO HARBIN

摘要

Consumed energy takes 1～3% of the oil energy preservation during transporting crude oil. For saving energy and reducing energy waste, we aimed at optimizing research on the operation process of oil pipeline in this paper. The summation of heat and electricity cost that is expended is the optimizing object function during the oil pipeline running. The mathematical model for optimizing operation of the buried oil pipeline under the periodic and unsteady atmospheric circulation was established, and optimizing software was developed, so that we can obtain the oil outlet temperature and pressure, which the sum of heat and electricity cost was the lowest. In this paper, the outlet temperature of every heat station over Day of Calendar Year and flux was given about the oil pipeline from Daqing to Harbin.. According to the results of optimizing calculation, more than 6 millions RMB could be saved every year in this pipeline by reducing heat consumption and electricity cost, and the optimized operation temperature of each heat station changes periodically over the time, and the outlet temperature's delay is about two month comparing with the atmosphere's temperature. It is conclude that oil pipelines must run by optimizing temperature and the temperature's delay must be considered in order to save energy as more as possible.