Study on the technology of supplying water safely by long-distance pipeline.

摘要

Extensively built long-distance water transmission pipelines have become the main water sources for urban areas in China. To ensure the reliability and safety of the water supply, from the viewpoint of overall management, it is necessary to establish a system of information management for pipelines. The monitoring, calculation and analyses of the system serve to give controlling instructions and safe operating rules to the automatic equipment and technician, making sure the resistance coefficient distribution along the pipeline is reasonable; the hydraulic state transition is smooth when operating conditions change or water supply accidents occur, avoiding the damage of water hammer. This paper covers the composition structures of an information management system for long-distance water transmission pipelines and the functions of the subsystems, and elaborates on the approaches and steps of building a mathematics model for the analysis of the dynamic hydraulic status.