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天然气管道的绝对当量粗糙度是工艺计算和评价管道涂敷内涂层经济效益的一个重要参数,目前,国内外输气管道绝对当量粗糙度的设计取值差异较大,介绍了管道工业发达国家输气管道绝对当量粗糙度的取值范围及有关绝对当量粗糙度的一些最新研究成果。针对我国的具体情况,以陕京和中原两条输气管道为例,进行实算反推运行管道的绝对当量粗糙度值,对长输大口径天然气管道绝对当量粗糙度的设计取值提出了建设性的意见。
The absolute equivalent roughness of natural gas pipeline is an important parameter in the process of calculating and evaluating the economic benefits of inner coating of pipeline coating. At present, the design values of absolute equivalent roughness of gas pipeline in domestic and abroad are quite different. The pipeline industrialized countries Gas pipeline absolute equivalent roughness range and the relative equivalent roughness of some of the latest research results. According to the specific situation in our country, taking the two gas pipelines in Shaanxi, Beijing and Zhongyuan as an example, the absolute equivalent roughness of the actual pipelines is deduced, and the design value of the absolute equivalent roughness of long-pipe large diameter natural gas pipelines Constructive comments.