Study on the leakage dispersion law of exposed high-pressure natural gas pipelines in the mountainous environment

The pipelines in mountainous areas have complex terrain conditions and pass through many densely populated areas. Once a pipeline leakage accident occurs, it will cause serious damage to the surrounding people environment. In this article, diffusion model of bare natural gas is established for exposed scenario, simulation scheme according characteristics pipeline-laying processes environmental Research has been carried out on pattern influence range transmission leaks under four types factors: different leak apertures, ambient wind speed, obstacle conditions, laying dangerous formed by diffusing along ground high altitude scenarios law influencing factors are obtained, suggestions emergency rescue focus response strategies given. research conclusions can provide theoretical basis accidents high-pressure environments great significance quantitative analysis risk consequences pipelines.