Three-dimensional Dynamic Study on Leakage and Diffusion of Natural Gas Pipeline Station

doi:10.11885/j.issn.1674-5086.2021.06.30.02

Abstract

Abstract: In view of the problems caused by the leakage and diffusion of natural gas in natural gas pipeline yards on safe production, a study on the law of natural gas leakage and diffusion in natural gas pipeline yards is carried out. We adopt professional software simulation method, use FLACS software to model, set boundary conditions to solve, study the influence of different wind speeds, different wind directions and different leakage rates on natural gas leakage and diffusion, and combine the relevant standards of the natural gas industry on the combustibility of natural gas pipeline stations in optimizing the position of flammable gas. The research results show that the greater the leakage rate and the lower the wind speed, the larger the volume of combustible gas in the station area, the wider the spread of combustible gas cloud, and the higher the degree of danger. At the same time, the hazard degree of downwind leakage is less than that of other directions. It is recommended that the flammable gas detector in the receiving and dispatching tube area should be set at 1 m away from the receiving tube, and the height should be set at 2 m. This research provides important theoretical support for the safe operation of natural gas pipeline stations.

Key words: natural gas pipeline station, leakage, flammable gas, detect, diffusion

CLC Number:

TE22

YIN Heng, ZOU Qing, LIAO Kexi, PENG Shanbi. Three-dimensional Dynamic Study on Leakage and Diffusion of Natural Gas Pipeline Station[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(2): 135-147.

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