Numerical investigation of surface conduit parallel gas pipeline explosive based on the TNT equivalent weight method

作者：Guo, Yanbao^*; He, Lugui; Wang, Deguo^*; Liu, Shuhai

来源：Journal of Loss Prevention in the Process Industries, 2016, 44: 360-368.

DOI：10.1016/j.jlp.2016.10.006

• Parallel pipeline
• TNT equivalent weight method
• Explosion
• Safe distance

With the rapid development of petroleum industry, the transport pipelines of oil and gas are increasingly constructed to minimize land use conflicts. Therefore, the parallel pipelines are unavoidable in order to save land resource, reduce the pipeline construction and maintenance costs. The economy and security of pipeline laying and running is the primary problem considered in pipeline construction, which the parallel spacing plays a decisive role to. The leakage of natural gas is very serious and dangerous due to its flammable and combustible. The explosive of leak gas causes impact failure to parallel pipeline. Specific to the surface conduit parallel gas pipeline, numerical simulation of leak natural gas explosive was carried out based on TNT equivalent weight method. Explosive damage degree of pipeline decreased with the pipeline distance increasing. Consulting with the pipeline ovalization strain design criteria and the combustion effect, the safety parallel natural gas pipeline space maybe at least 4 m to ensure the surface conduit parallel pipeline safely and steadily operation.

• 出版日期2016-11
• 单位中国石油大学（北京）