Abstract
Gas venting is an important step in the emergency repair of natural gas pipeline accidents. Accurately estimating the gas venting time is of great significance for arranging gas pipeline emergency repair process. Therefore, the venting model is built with Stoner Pipeline Simulator (SPS), and the influencing factors of venting time are studied by SPS dynamic simulation. The results show that pipe length, pipe pressure, pipe diameter and diameter of gas venting pipe can affect the gas venting time. And then a empirical law of natural gas venting time and pipe parameters is summed up, which can provide theoretical support for the organization of emergency repair.
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